A group of martial arts enthusiasts from the Burbank Karate Club embarks on a pleasure cruise to a mysterious island rumored to be the burial site of disgraced martial artists. Led by the charismatic Captain Harry Dodds, the passengers include law student Mike O'Malley, feisty martial artist Thomas Speer, and the adventurous ex-stripper Cookie Winchell. They are unaware that the island is inhabited by a cult of monks trafficking women and practicing cannibalism, all under the control of a sinister leader. The cult believes in a dark ritual where they resurrect dead martial artists to do their bidding.

As the cruise progresses, the passengers' idyllic voyage turns into a nightmare. Their ship is attacked by ruthless mercenaries in league with the monks, leaving them stranded on the island. The group finds themselves in a desperate fight for survival as they discover the true horrors of the island's secret. Tension escalates as each character must use their martial arts skills to combat both living and undead threats. The escalating danger pushes their limits, testing their resolve and forcing them to rely on ingenuity and teamwork to fend off the relentless adversaries awaiting them.