Foreign exchange students Duncan (KSI) and Jack (Caspar Lee) are graduating high school and have one night left in the America. Tucker's (Josh Leyva) party is their last chance to score with the girls of their dreams, and the two friends hatch an elaborate and desperate plot to get into the biggest party of the year. Their adventure leads them to encounter everything from gun-wielding gangsters to sexual deviants as the boy's friendship is pushed to its limits. The duo must work together to fulfill their fantasies in time to catch their flights back home.