Popular and dashing American singer Nick Rivers travels to East Germany to perform in a music festival. When he loses his heart to the gorgeous Hillary Flammond, he finds himself caught up in an underground resistance movement. Rivers joins forces with Agent Cedric and Flammond to attempt the rescue of her father, Dr. Paul, from the Germans, who have captured the scientist in hopes of coercing him into building a new naval mine.

When the bumbling Lieutenant Frank Drebin investigates events following the shooting of his partner, he stumbles upon an attempt to assassinate Queen Elizabeth II.

Bumbling lieutenant Frank Drebin is out to foil the big boys in the energy industry, who intend to suppress technology that will put them out of business.

Frank Drebin is persuaded out of retirement to go undercover in a state prison. There he has to find out what top terrorist, Rocco, has planned for when he escapes. Adding to his problems, Frank's wife, Jane, is desperate for a baby.