A strange signal arrives on Earth disturbing communications, while a UFO appears. Captain Alex Hamilton is sent with his spaceship and crew to find the origin of the signal.
Cousins Thomas and David, owners of a mobile restaurant, team up with their friend Moby, a bumbling private detective, to save the beautiful Sylvia, a pickpocket. Action and humor abound in the streets of Barcelona, culminating with a battle in the castle hideout of the evil gang.
