Jim Valenti breaks the news to the aliens and their friends that Alex was killed in a suspicious car accident. Max attempts to revive the already dead Alex, but sadly cannot. The gang must then deal with their overwhelming grief over losing their beloved friend. When the investigation into the car accident leads Valenti and Max to believe that Alex committed suicide by deliberately driving his car into the oncoming path of a truck, Liz blows up and refuses to believe it. Liz begins investigating on her own, finding a photo of Alex and his Swedish girlfriend defaced literally with Alex's head missing. But the weirdest clues are the passage from a Robert Frost poem and the credit card slip that Alex signed just before his death, the strange part: he signed it 11100100100111011001.
Max, Isabel and Michael have been hiding a secret for their entire lives - that they come from a different planet. When Max is exposed while saving Liz's life, a girl who attends their high school, it eventually leads to a few others learning their secret. The three aliens and their new friends try to go about their normal lives while trying to discover more about where they come from and how to get home - all while keeping their identities secret from the rest of the world.