Inspector Gadget is a clumsy, dim-witted human cyborg detective with various bionic gadgets built into his body. Gadget stumbles around working the cases while his niece and dog do most of the investigating. Gadget's arch-nemesis is Dr. Claw, the leader of an evil organisation, known as "M.A.D."
M.A.D. agent Rat begins committing crimes in an easy to predict pattern to lure Inspector Gadget into a steel foundry that has been turned in a deathtrap.
Gadget must protect a trainload of important computer parts from M.A.D. hijackers.
Gadget is assigned to halt a diabolical M.A.D. scheme: put entire cities to sleep with a powerful sleeping gas.
A new supercomputer has made the Metro City police so efficient that Chief Quimby fires Gadget but M.A.D. has a plan to control the computer and feed the police false information.
Gadget is assigned to protect Professor Greenfinger who has developed a super plant growth formula, but Greenfinger has already been replaced by a M.A.D. agent.
Inspector Gadget arrives at a western tourist town that plays heavily on its cowboy image to stop modern day outlaw Black Bart.
