An evil spirit, the Chupacabra, is killing off livestock in Mexico. El Toro and Jackie take on the beast one night and find out that sunlight will kill it. With the Chupacabra dead, a festival is held, and El Toro shows Jackie a scratch he received. Jackie goes and translates tablets that say El Toro's marks made him the next Chupacabra. It is too late, and El Chupcabra is gone. Jackie calls Uncle, and they set off to get Chapsecum to revive El Toro. El Toro is chained in a cave while they set off. They get the Chapsecum and return, but El Toro is missing. He escaped. Jackie finds him and gives him the cure, and our heroes walk off into the sunset.