In 1995, seven years after the death of Donnie Darko, his now 18-year-old sister Samantha Darko is still struggling with his death and has started
sleepwalking. Samantha leaves her family in Middlesex, Virginia and joins her best friend Corey on a road trip to
California. When their car breaks down in Conejo Springs, a tiny
Utah town, they are helped by the town's "bad boy", Randy. The pair meet eccentric locals and learn that a local boy, Billy Moorcroft, has gone missing. That night, during a bout of sleepwalking, Samantha meets a homeless veteran with
PTSD whom the locals nicknamed "Iraq Jack" living in a junkyard. As the pair sit atop a
windmill, she tells him that the world will end soon, something which Jack says he already knows. The next morning Samantha wakes up outside and sees that a meteorite has crashed into the windmill. The next morning at a diner, Samantha and Corey meet Jeremy, a nerdy young man who bought the meteorite and is eagerly investigating it. Later, at a party, Samantha clashes with Corey and Randy, also learning that Randy's younger brother is missing and presumed dead. That night a surreal vision of an undead Samantha with a piece of metal lodged in her skull takes Jack to the local
church and commands him to burn it. The next day, police find his dog tags in the ashes. Jack forges a bunny skull mask out of scrap metal taken from the church. Meanwhile, Samantha wakes up next to a highway, where she encounters Randy and Corey in a car together. Samantha tells Corey she wants to leave and the two argue bitterly. Samantha walks off into the highway moments before another car appears, causing a crash that kills her. Anguished about her best friend's death, Corey meets a boy who commands her to come with him to save Samantha. Corey follows the boy to a cave into a portal that takes her back in time. Everything moves backward to when Samantha is walking down the road, where Corey is able to send the other car into a wormhole in the sky. Corey and Randy drive up to Samantha again and Corey reconciles with her, but shortly thereafter Corey is struck and killed in the same car crash. Samantha is devastated by Corey's death. After another sleepwalking incident, she sees a dress in a shop window which she recognizes as the one she is wearing in her sleepwalking visions. Samantha meets Jeremy at the shop, which is owned by his family, and discovers he has developed a rash from exposure to the meteorite. Randy arrives and offers to help Samantha, but she dismisses him and leaves before Jeremy headbutts Randy, knocking him out. The next day, Samantha wakes up on a hilltop with Iraq Jack. He tells her he is Justin Sparrow, Glgrandson of Roberta Sparrow who wrote about time travel, and that he made his bunny mask based on a drawing Samantha had which was made by Donnie. Wandering into a nearby mine, Samantha finds the bodies of two dead boys: Randy's little brother and the boy who appeared to Corey, Billy Moorcroft. The townspeople assume that Justin is responsible for the deaths of the two boys and police take him into custody. That night, Jeremy gives the dress to Samantha as a gift and asks her to watch the July 4th fireworks show with him. On a hilltop, they see glowing
tesseracts falling from the sky. Jeremy's sickness worsens and he becomes increasingly manic and violent with Samantha and accidentally kills her by impaling her head on the bunny mask. As the meteor shower intensifies, the undead Samantha appears to Justin and frees him from jail. He dons the mask and goes back in time to the moment he was sitting on the windmill that was destroyed by the meteorite. This time Justin chooses to stay and is killed by the meteorite. Samantha and Corey visit the site and find the locals taking away Justin's body. Not wanting to profit from someone's death, the owner of the land decides not to sell the meteorite. Samantha, having never experienced the events after the meteorite crash, decides to go back home while Corey stays in the small town with Randy. ==Cast==