Sarah (Kate Bosworth) invites her childhood friends, Abby (Katie Aselton) and Lou (Lake Bell), to a remote island that they once spent time at in their youth, in hopes of bringing their distant group back together. Though Abby and Lou are reluctant, they go with Sarah to the island. While there, they use a hand drawn map to try to find a time capsule they had buried as kids. They give up after Abby picks a fight with Lou over Lou having slept with her boyfriend years ago, something Abby has never gotten over and which ruined their friendship.