首個在火星出生的人類家立，16歲回到地球後，發現一切是那麼新奇有趣，於是擅自逃離科學家及醫護人員的保護，決心去找地球上的唯一朋友杜莎 展開錯綜複雜的歷險，一起追尋自己出生之謎，一起嚐到動人初戀…

When the FBI hires her to go undercover at a college sorority, Molly Morris (Miley Cyrus) must transform herself from a tough, streetwise private investigator to a refined, sophisticated university girl to help protect the daughter of a one-time Mobster. With several suspects on her list, Molly unexpectedly discovers that not everyone is who they appear to be, including herself.

The last night of the millennium and a suicidal man with a bullet in his head and vengeance on his mind makes his way up the long winding drive to a New Years party winding down...but the party has just begun as he will take them on a journey of self-discovery bringing them face to face with fate and truth. His goal: force them to confront reality as he has known it, as they have tried to hide from it their whole lives but tonight it will hit them in the head like a sledgehammer, and the test will be, who can remain standing in the end...