Three best friends - Alex, Az and Jim - head to Ibiza for their first lads holiday. Tagging along is Alexs unimpressed ex-girlfriend Ellie, whom they quickly dump with Alexs sister and head to San Antonio to start their week of sun, sea and debauchery. Soon they end up in a club run by local gangster Karl, where the attractions aren't all alive - they're zombies! Due to Jims drunken antics the zombies escape. Soon all hell breaks loose and no one on the party island is safe!