The Endless 2018

Brothers Justin and Aaron receive a video cassette in the mail made by Camp Arcadia, a group they belonged to as young adults. Justin and Aaron’s recollection of events differ; Justin says the group was a UFO death cult, but Aaron recalls them as a harmless and friendly commune. Aaron points out that the video cassette proves the members are still alive. Justin, however, is worried that talk of “ascension” may be a code for some future mass suicide. Fed up with their inability to make friends or find good jobs since leaving Camp Arcadia, Aaron convinces Justin to return for just one day.

Justin and Aaron receive a friendly welcome at Camp Arcadia. None of the members seem to have aged in the decade since the brothers left. Anna and Lizzy take an interest in Aaron and Justin, respectively. Although Aaron welcomes the attention, Justin stays aloof from everyone but his brother. One of the members, Hal, excitedly shows Justin a physics equation he has been working on. He says that he cannot explain what it represents, as it would be akin to describing an impossible color. However, he hopes that Justin will eventually accept the group’s beliefs now that he is older. As they partake in various activities, Aaron grows increasingly fond of his time at Camp Arcadia, and he convinces Justin to stay an additional day.

During one activity, members attempt to win a tug-of-war against a rope that ascends into the dark night sky. Justin says it is held by a member on a ladder but cannot explain how he loses when everyone else is present. The brothers separately notice increasingly weird occurrences. While exploring the woods, Justin becomes convinced an invisible entity is observing him, and it leaves him a photograph of a buoy. When Justin presses Hal for answers, Hal admits that he knows no more than anyone else. His physics equation is his interpretation of what is happening, and he encourages Justin to find his own answers by following the entity’s clues. He advises Justin to search the bottom of the lake under the buoy in the photograph. Two moons rise in the sky. Hal tells Justin to come to a conclusion before a third rises.

Justin and Aaron go fishing. When Justin sees the buoy from the photograph, he dives into the water. He returns with a toolbox and says that something tried to hold him under. When they open the toolbox, they find a tape. Freaked out by the strange events and ostentatious clues, Justin insists they leave immediately. At the camp, Hal and Justin get into an argument after Hal plays the tape, which is a recording of Justin and Aaron misrepresenting Camp Arcadia to outsiders. Justin calls Hal a cult leader, and Hal says Justin made up lurid stories to tell the press about Camp Arcadia. Outraged that Justin was misleading him, too, Aaron refuses to leave. Justin’s car does not start, and he leaves to find help.

Justin encounters several people stuck in time loops, most of whom repeatedly experience their own violent deaths for the amusement of the entity. They explain that the entity has trapped them and that he will also become trapped once the third moon rises. Justin finds Aaron, who has come looking for him. Justin explains their danger, but Aaron still wants to stay behind, as he cannot stand to return to his old life. Aaron reasons that experiencing death at the hands of the entity, which is considered a sacred ritual by the cult, would be better than menial jobs and not having friends. When Justin admits he was wrong to force Aaron into this lifestyle, Aaron becomes hopeful that their life can improve and agrees to leave. The brothers barely escape as the entity destroys the camp. Justin advises Aaron to refill the gas tank and Aaron says that the car’s gas tank gauge has always read empty.