Ep 5. The End of the World

Max is haunted by visions of a girl who begs him to save her. Unable to decipher their meaning, he confides in Liz, who believes the girl to be Tess, the alien who left Roswell with Max's son in the first season finale. Meanwhile, Isabel becomes worried about Alex's behavior after he starts acting erratically, leading her to uncover a dark secret about his family. Michael, on the other hand, finds himself drawn to a mysterious woman named Courtney who claims to be an alien like them. As tensions rise and secrets are revealed, the gang must come together to prevent an apocalypse that could destroy not just Roswell, but the entire world.