An evil doctor wants to wake up a sea monster in Torremolinos (Málaga). A catholic surfer and his gang will try to mess up his plan.

Torremolinos, AD 2000. One of the leisured cities in the world is close to a big nightmare. The evil Doctor "Malvedades" comes to the city to resurrect four karatecas drowned in the coast of Málaga when they were mercenaries during the World War II. With his zombie army, will kidnap five recently deflowered girls, necessary to awaken the beast Jocántaro, half crab, half octopus. One of the girls, Danuta, is the girlfriend of a catholic surfer, Jess, who, with his gang composed by a priest, a nun, a karateka and a yuppie, will do the impossible to rescue her. For this, they will invoke the spirit of Mr. Miyagi who will teach them all karate's secrets.—Jorge Benavente Rico