A scientist discovers a way to bring the dead back to life using nuclear power but it makes him the target of secret agents who will stop at nothing to get his formula for themselves.

Investigator Fred Lester uncovers a killer using an air pistol firing chemical bullets in the swinging '60s spy thriller RING AROUND THE WORLD, a globe-hopping escapade featuring a plane-and-parachute stunt later repeated in the James Bond film Moonraker.

An electronic ray that can counter any aerial attacks has just been invented by Professor Goodwin, but before he can put in good hands, he is kidnapped by a criminal organization, that starts an international bid for him and his invention among the rogue countries of the world. The CIA sends Agent Sigma 3 to find the Professor before the transaction takes place. His mission takes him from Rome to Tangiers, and to Barcelona.