Mexican millionaire and bullfight aficionado, DeSada, is head of Thrush:Central America. In an effort to gain control of Project Gamma, a rocket transport capable of 5,000 mph, he has kidnapped the three men who have created it. Meanwhile, his own scientist has develped a machine capable draining a brain of all its knowledge and transfering to a computer tape. April has made contact through one of DeSada's helpers, a famous matador. Mark takes on the persona of a bullfight critic to aid April in freeing the three kidnap victims.