in the dark Forest a battered and exhausted woman tries to remove the zip ties binding her wrists sawing them against a jagged Rock she mutters something about a killer while a wolf-like dog watches as she breaks free and runs away meanwhile in a ranch house Maggie chenowith traps a wasp in a teacup to release it from her son Arlo's room the boy asks her to free the insect and Maggie steps outside glancing into the room of her teenage daughter Merill and observing her mother-in-law Ellen working in the kitchen on the way outside her husband James
calls out to her mentioning that the farm animals are behaving nervously and suggesting they talk however Maggie is not ready to discuss their strained relationship she releases the WASP while Arlo waves his hands and suddenly notices a kid disappearing into the forest the boy follows it the chenowith realize Arlo was missing when Maggie calls everyone for dinner at that moment a truck pulling a horse trailer drives up the driveway their neighbors have arrived because Maggie a veterinarian is needed to tend to shanley's injured horse Maggie begins working on the animal while the other family members
start searching for Arlo teenager Nicholas Shenley explains that he was riding his horse when it suddenly screamed as if frightened then began smashing its head against the fence and bleeding all over James assures him that Maggie will take care of the animal and asks everyone else to help find Arlo Ellen tries to cheer up Nicholas by playing music but the broadcast suddenly cuts out with a high-pitch sound Nicholas mentions their radio did the same thing on their way here meanwhile Maggie and Nicholas's father Reuben examined the horse although it has lost a lot of blood
the situation isn't as bad as it seems however under its Mane they find a splinter embedded in its neck and Maggie prepares to remove it at the same time Merill reports that a goat is missing from the barn Valerie recalls that the animals have been crying running and hiding since the morning James and Valerie pair up while Merill and Nicholas search the nearby Forest Arlo meanwhile wanders through the dark woods occasionally crying out for help suddenly he hears muttering behind him and falls to the ground in Fright Nicholas and Merill cease something in the darkness
while Maggie and Reuben successfully removed the Splinter from the horse's neck James and Valerie talk revealing that they had a relationship unknown to their respective spouses James shares a story about how Merill went missing as a little girl inspired by the tale of Hansel and gredle she hid in an oven got stuck and fell asleep while her parents panicked just then Nicholas and Merill rushed back having found the missing goat in Duke a dog belonging to another neighbor's family James orders everyone back to the house declaring that something strange is happening in the woods at
the same time Arlo encounters the woman who leans over his face opens her mouth and a rainbow like glow transfers from her eyes into his back at the ranch another vehicle arrives it's Donald Kelly and his wife CLA neighbors who have come looking for their dog Duke Donald mentions seeing a large possibly rabid dog and urges James to find and shoot it while they argue Arlo emerges from the forest behaving just as the woman did earlier muttering about needing to run and hide Maggie is a alarmed by his strange Behavior and the marks on his
arms as though someone had grabbed him meanwhile the distressed woman seems to regain her senses looking around in confusion at how she ended up in the forest suddenly the massive dog attacks her at the ranch's Edge another car pulls up a man wearing a gas mask silently sprays something creating what looks like a blue boundary the lights at the ranch begin flickering and then go out completely inside the house in the vehicles everywhere James tries to start his car to take to the hospital but nothing works while Donald stays outside with a weapon the rest
of the group heads indoors so Maggie can tend to her son and administer first aid Arlo falls into a strange State alternating between being catatonic and answering questions with surprising Clarity an argument breaks out between the siblings during which Valerie mentions the story of Merill hiding in the oven Maggie's face turns pale upon hearing this realizing that Valerie knows their family secrets Maggie assigns tasks to everyone and tries to question her son about who did this to him the boy says he doesn't know but insists they must leave as soon as possible suddenly he becomes
frantic and tries to run but Maggie grabs and restrains him in the process Arlo manages to push Nicholas forcefully meanwhile in the kitchen the other women grow increasingly anxious Valerie starts cleaning the dishes to keep herself busy and Claire suggests taking the dog and heading straight home to call the police from their landline elsewhere Merill treats a wound on Nicholas's head as he tries to make her laugh he can confesses that he is terrified of what's Happening James and Reuben prepare to saddle the horses to seek help but notice a car with its headlights on
at the end of the driveway they run toward it only to be stopped by a man in a gas mask holding up a paper with a written warning not to cross the line back in the house Arlo suddenly swings scissors at Maggie demanding that everyone leave and hide immediately Maggie grabs her son in a tight Embrace and he admits that it's not him doing this frightened Arlo tells his mother he's scared and Maggie calms him by admitting that she's scared too Arlo asks her to sing and she starts a children's song about a lighthouse while
the boy pretends to be the lighthouse using a teacup deep in the forest Donald wanders with his rifle when he stumbles over the mangled body of the mysterious woman dropping his weapon as he stands up he finds the massive dog standing over the rifle making it impossible to retrieve on the road James and ruin attempt to talk to the man in the gas mask when Reuben tries to step closer the man fires a warning shot into the air halting them in their tracks suddenly Donald bursts out of the forest pursued by the dog he manages
to climb over the fence but the dog catches him on the road and attacks Donald fights it off but as soon as the dog crosses the blue boundary it is violently shredded to Pieces the masked man holds up another warning not to cross the line and advises them to trust no one before getting into his car and driving away meanwhile Clare decides to head home with Duke and call the police from her landline ignoring the men's desperate pleas to stop she persists When Donald tries to pull her back they both lose their balance the moment
Donald's hand crosses the line it begins disintegrating into a bloody pulp CLA is entirely obliterated by an unseen force her body turned into a horrifying sculpture back in the house Arlo pulls a dictionary from the shelf and flips through the pages until he finds the word trap he warns that the voice in his head says they're all trapped and must hide the next morning Donald remains outside staring at his wife's mutilated body while the others wake from a Restless sleep Maggie checks on Merill and asks her daughter to look after Arlo Merill demands to know
what happened to CLA but Maggie has no answers later Maggie and James discuss their next move James decides to scout the area and Maggie urges him to take Reuben along when James refuses Maggie accuses him of having an affair with Valerie unbeknownst to them Reuben overhears the argument James insists the relationship is over and that he loves Maggie but she doesn't want to hear it Valerie notices something is off with Ruben but doesn't press before leaving Ruben subtly lets Maggie know he overheard but assures her they can get through this he hands her his rifle
before departing then Maggie brings Donald into the house while Ellen and Valerie cover Claire's body with a blanket meanwhile Ruben and James decide to visit the nearest neighbors the Navaro family and saddle their horses for the journey inside the house Maggie tends to Donald's injured hand as he shares that he and Clare wanted children but were unable to have any suddenly he recalls the body in the forest as James and Reuben ride through through the woods they come across a severed snake at the edge of the line Reuben offers a cryptic warning but James doesn't
understand him meanwhile merol and Nicholas find Arlo who is studying words from the dictionary the boy explains that he is the harbinger while Arlo is currently asleep he claims that they are all trapped and will die unless they hide he warns that the Assassin will kill everyone the boy shoves his sister and accidentally knocks over a glass of water spilling it onto a drawing of a rainbow and smudging the colors on one end suddenly the heart ER calms down and announces there is still a way out he pulls Merill along saying they need to go
somewhere for a brief moment Arlo regains control and begs his sister to trust the harbinger at the same time Ellen confides in Valerie that she knows about her affair with her son Ellen starts complaining about her life when a car appears on the road a man in body armor steps out and despite the group's warnings crosses the boundry and enters the circle he explains that entering is not a problem but leaving is impossible meanwhile The Harbinger leads Marilyn Nicholas to a part of the forest where the ground looks scorched and dead animals are scattered around
when the teenagers question him he points to the sky and explains that he came from there he collects a rainbow colored liquid From a Stone Hollow in the ground and tells them it's poison they must drink elsewhere Reuben and James reach the Navaro house and split up to search the area James finds the dead bodies of the family members while Reuben enters a silo only for the door to slam shut behind him at the same time Maggie Ventures into the forest to find the body Donald mentioned she recognizes Carmen Navaro but can't understand what happened
to her James searching the Navaro house hears something in the basement and heads toward the stairs when something grabs him and pulls him down back in the forest The Harbinger tells Merill and Nicholas that if they drink enough of the rainbow liquid they'll be able to cross the boundary however drinking too little or too much will kill them if they wait the Assassin will come and kill them anyway Nicholas concludes that death awaits them no matter what but Merill urges them to return home meanwhile the man introduces himself as Lieutenant Olsen and tells Ellen and
Valerie that he's here to help he asks about everyone at the ranch Maggie arrives and shares news of Carmen Navarro's body olssen admits that finding Carmen was his mission as she had been behaving strangely he then asks if anyone had contact with Carmen before she died saying that it could be a problem Ellen recalls that Arlo was in the woods Maggie lies saying the boys in the barn and leads Olsen there Ellen reminds Valerie that the man in the gas mask warned them not to trust anyone in the forest Merill asks the harbinger to let
her talk to Arlo the boy explains that the harbinger came from space on a secret mission while the Assassin wants to kill him and created the blue boundary to trap him in the barn olssen tells Maggie that he's a police officer in part of a larger task force although he's currently working alone he explains that there's a strong disturbance in the area that complex organisms can't withstand Maggie starts asking pointed questions trying to determine who killed Carmen but olssen evaded her questions she leads him to the attic mentioning that Carmen had marks from handcuffs on
her wrists proving that olssen is lying the man admits it and suddenly attacks her but Maggie knocks him out with her pistol later olssen is tied up in the barn as Maggie and Valerie keep watch over him Maggie is convinced that olssen is not who he claims to be upon learning of his lies Valerie realizes Maggie knows about her affair with James however Maggie refuses to deal with it now she leaves to search for her son asking Valerie to keep an eye on olssen soon Ellen enters and informs Valerie that the children are not in
the house she asks Valerie to assist Maggie in searching for them while she stays behind to guard the prisoner Maggie begins to have a panic attack and Donald helps her calm down meanwhile in the forest the children encounter another man in a gas mask holding a sign that reads do not cross the line Nicholas slowly draws a knife he had taken from the kitchen seeing the jar in their possession the man demands they hand it over when the children refuse he cross crosses the line and engages in a fight with Nicholas during the scuffle the
jar shatters and Nicholas stabs the man with the knife Merill tries to help the injured man removing his gas mask the man recognizes the entity inside Arlo And The Harbinger identifies the man as inhabiting the body of someone named McNab who is on his side back at the barn olssen convinces Ellen to wipe the blood from his eyes as she leans closer he opens his mouth wide and the entity inside him transfers into Ellen Olsson regains Consciousness but the now possessed Ellen kills him and stages a fight in the barn at the Navaro Ranch Reuben
enters the Silo and sees a massive glowing tree with rainbow colored lights darting along its surface in the basement James wakes up to find his hands tied a wounded young man stands nearby demanding James give him a good reason not to shoot him in the head James tries to explain the blue line and his son but the young man doesn't believe him the man revealed to be Travis recalls working at a bar where he first encountered mcab who drunkenly spoke about aliens from space and an invisible deadly trap McNab even showed him a scar in
his hand to prove the traps existence Travis was instructed to drive McNab home and during the ride McNab explained that the Trap has an energy source emitting rainbow colored light which lures people in and then destroys them after leaving McNab at home Travis grew concerned and returned to check on him McNab woke up and pointed a gun at Travis but then admitted he understood Travis's doubts saying he was probably wondering if MCN was telling the truth over time Travis befriended McNab who explained that the visitors don't have physical bodies they travel on meteorites and upon
reaching Earth inhabit human hosts the visitors are divided into good and bad factions McNab introduced Travis to Olen who taught him how to handle Firearms the targets they used bore photos of themselves emphasizing the difficulty of shooting a friend compared to a stranger killing a visitor however was much harder as they were essentially nothing McNab shared an example of a woman named named Mary Alice Ducker they had monitored her for nearly 2 years in a chat room 2 weeks ago she purchased a gun zip ties and began tracking meteor activity suggesting she was expecting a
messenger likely a good one they believed she would soon lead them to it McNab proved his point by recounting a story about his daughter Alice 10 years ago she went for a walk in the woods and returned with a good messenger inhabiting her a bad messenger later entered their home gave Alice a jar of rainbow liquid and drank some himself before they both calmly walked out of the outline trap McNab tried to chase them but grazed the trap with his hand causing his injury the aliens eventually left Earth but not before killing Alice McNab handed
Travis a small vial of rainbow liquid he had found back then at Daybreak the three men McNab Olsen and Travis follow Mary's car they watch as she releases a dog into the woods and then heads toward the Navaro house observing the family the men deduce that a good messenger has inhabited Carmen Navaro they joh gas masks and approach the house to warn the family while McNab and olssen enter the house Travis is instructed to fill an inflatable pool with water however Mary begins shooting at people and pours the rainbow liquid into The Silo at the
same time Carmen flees into the forest realizing she is setting a trap McNab jumps into a car and drives away Mary finds a terrified Travis and transfers the visitor to him when the girl regains control of herself she is horrified and shoots Travis He is forced to kill her in self-defense at at that moment Olsen appears and the messenger transfers into him Travis hides in the basement during the retelling of these events Reuben Remains transfixed by the rainbow colored tree unable to leave in the basement Travis's condition deteriorates James convinces him to let him go
and tries to take Travis with him but Travis shoots himself James discovers that Ruben is trapped in The Silo due to the growing tree using an axe James Breaks through the wooden walls however upon freeing Reuben the man attacks him revealing that he knows about James's affair with Valerie despite this they return to the forest where they encounter Arlo Merill and Nicholas who are helping the injured McNab meanwhile at the ranch Maggie treats Ellen's head wound unaware that the woman is now the messenger she notices that Ellen's hands have stopped trembling suddenly the messenger attempts
to transfer to Maggie but Valerie enters the room just in time with news that everyone has returned Maggie rushes to meet her husband and children Nicholas recounts everything to the adults emphasizing ing the rainbow liquid that can be used to escape the Trap Reuben requests to be taken to mcnab's car Merill helps Maggie treat McNab while Donald leads James to Olsen's body recalling Travis's story James realizes that the messenger transferred from Olsen to Ellen meanwhile Reuben Valerie and Nicholas reached the car and find the broken jar which still contains a small amount of rainbow liquid
seeing it Ruben freezes unable to respond to his family's questions suddenly a wolf appears before them the group group steps back as the wolf begins drinking the liquid Reuben orders his son to shoot but before Nicholas musters the Courage the wolf finishes the liquid and runs into the forest Nicholas then discovers mcnab's journal on the ground at the same time Arlo tells his mother that the harbinger's mission is to locate a device without waking the Assassins hidden inside people The Harbinger is like a switch for the machine and if he fails his mission an invasion
will begin McNab regains Consciousness and threatens Maggie demanding she hand over Arlo James arrives and informs McNab about Travis and olsson's deaths in despair McNab starts shooting hitting Donald before fleeing later it's discovered that Ellen has also gone missing returning from the forest Nicholas takes mcnab's journal to Arlo's room and shows it to the others the children lock themselves in the room while the adults search the ranch eventually Donald finds Ellen in the Stables they tie her up despite her assurances that the messenger has left her this Revelation however means the messenger is now in
someone else and could be inside any of the six adults present the group argues about what to do and Nicholas mentions that mcnab's journal States the messenger can be expelled from a person by drowning them meanwhile the injured McNab regains Consciousness in the forest he returns to the Navaro estate finds Travis's body and retrieves the vial of rainbow liquid from around his neck at the ranch the atmosphere grows increasingly tense as no one knows who is now hosting the messenger the men build a fire hoping that black smoke will attract outside attention Maggie discusses the
situation with James and shows him a piece of paper with instructions for saving a drowning person they debate how to drown someone and argue over the implications Reuben calls Donald who is still armed with a rifle to follow him and see what he has in mind meanwhile Valerie helps Ellen bring groceries in from the barn Ellen notices a knife in Valerie's hand however when Valerie hands it to her Ellen calmly returns it demonstrating that she Harbors no ill intent Nicholas continues reading mcnab's journal and learns about a family in Maine that forced an assassin to
leave the body of a woman had inhabited by drowning her and then Reviving her this incident convinced their entire settlement of the possibility of an invasion leading to the formation of a resistance group in the kitchen Valerie tries to compile a list of people who were alone with Ellen but fails to identify the visitor meanwhile Reuben takes Donald to the Navaro estate and sets The Silo on fire hoping to destroy the tree at the chenowith house Merill and Nicholas share a kiss Merill then goes to check on Arlo who repeatedly draws a zigzag line without
understanding its meaning Merill guesses it might be a map Maggie and James resume their discussion about drowning and wonder how to resuscitate someone if the messenger transfers through the mouth they realize that removing their gas masks would leave them vulnerable at the Navar Ranch it becomes clear that although The Silo burned the tree remains intact McNab arrives and suggests trying something else showing them the vial of rainbow liquid back at the chenna with house Valerie tells Nicholas they need to leave because she has figured out who the Assassin is meanwhile Marilyn AR place the drawing
over a map and Discover It points to a road leading to belnap Mountain Valerie leads Nicholas away from the house to the Blue Line suddenly she opens her mouth and the messenger transfers from her to Nicholas Valerie briefly regains control but is pushed across the blue line by the Assassin now inhabiting Nicholas at the Navaro Ranch McNab instructs Reuben who drinks the rainbow liquid allowing him to approach the tree Ruben breaks off a branch runs back and places it in a glass jar where it transforms into a puddle of rainow liquid at the chenowith house
James tells Maggie about Travis's tragic death and asks for her forgiveness Arlo And Merill also discuss the situation suddenly Arlo confesses that he thinks he knows what needs to be done but before he can explain Merill notices Nicholas and rushes to him Nicholas claims that the Assassin is his mother he leans toward her and transfers the messenger to Merill she knocks Nicholas unconscious and returns to the house fortunately Arlo Witnesses everything from his window and warns Maggie and James when Merill enters the house Maggie points a rifle at her the Assassin inside Merill demands that
Arlo be handed over when Maggie refuses it threatens to kill Merill at that moment James wearing a mask grabs her Maggie also puts on a mask and together they submerge Merill in a filled bathtub meanwhile Reuben Donald and McNab return and find Nicholas Ellen warns them not to enter the house after a struggle Merill finally drowns her parents pull her out and Maggie attempts to revive her while James walks away unable to Bear the sight after several agonizing moments Merill regains Consciousness Arlo notices the jar of rainbow liquid and realizes they can use it to
leave Reuben urges everyone to head to the van while he gathers the others Maggie and Merill return to the kitchen where they find James seemingly fighting with himself he yells at them to run outside the group finds Valerie's body and Nicholas breaks down in despair The Harbinger Arlo is distracted by a sound and wanders away from the group no one sees James attacking Reuben Maggie intervenes armed preventing James from killing Reuben unable to shoot her husband she injects him with a sedative Maggie and Arlo flee but the boy stops her reminding her about the teacup
with the WASP when James attacks Maggie she traps him in the freezer Merill tries to help her father fearing he will suffocate but Maggie cannot bring herself to release him afterward the group drinks a small amount of the rainbow liquid and crosses the Blue Line Ellen decides to stay behind to care for the animals hoping Maggie and the others will return with a ution the group climbs into Olsen's van and heads toward the fire station minutes later their path is blocked by a man and a woman Carol who were connected to McNab through the internet
after McNab stopped responding Carol began searching for him as Carol rummages through her backpack another car appears and runs both of them over a man and a woman in gas masks exit the vehicle they dump the contents of Carol's bag under the ground zip ties a sedative and a jar of rainbow liquid the woman informs the group that Messengers are waking up up all over the world and that Carol was one of them she offers the group a choice join them and fight together or Die Alone one of the show's greatest strengths is its atmosphere
the Creator skillfully build a sense of mystery and fear making the viewing experience captivating intense however as answers to the questions emerge The Narrative becomes somewhat mundane