A group of teenagers find themselves shipwrecked on an uncharted island off the Mexican coast. Faced with the prospect of a long-term stay, the island soon degenerates into a struggle between two groups; teens who want high school to end as fast as possible, and teens who never want high school to end.

Two rival street gangs clash in this urban action thriller. "Los Locos" and "La 213" are two rival gangs that have transformed the streets of Los Angeles into their own personal war zone. Leading "Los Locos" into battle is fearless thug Loco. On the "La 213" side, Riot prepares his fellow gangsters for the fight of a lifetime. When Loco's younger brother makes the mistake of venturing onto "La 213" territory, all hell breaks loose. Desperate to find refuge from the bloodshed, Loco escapes to an abandoned hospital with his girlfriend Mia and a group of fellow "Los Locos." Meanwhile, psychotic drug dealer "Tweaker" comes out guns blazing, and Riot hatches a plan to take out "Los Locos" once and for all.