Faith (Selena Gomez), Brit (Ashley Benson), Candy (Vanessa Hudgens), Cotty (Rachel Korine) are four beautiful girls who are students at the same university. Spring break is coming, and the rich kids in the school are traveling together. Only these four girls who can't make up enough money for the travel are trapped in the boring campus. The stimulation of youth hormones and the crazy yearning for spring break travel make the girls think of ways to get travel expenses through robbery. After the robbery, they embarked on a journey to the Florida beach. At the crazy beach party, several girls spent a few days of drunkenness and met a weird man who called himself Alien (James Franco) near the end of the holiday. Alien showed great intimacy and interest in several beautiful girls. Although it was disturbing, it also fascinated several girls. But several girls never thought that meeting Alien was the real beginning of their spring break.