|Season Season 1, Episode 18|
|Air date|| October 4, 1983 (US)|
August 1, 1985 (UK)
The Curse of the Pharaoh
"The Infiltration" is the 18th episode of Inspector Gadget.
Gadget, Penny, and Brain are in London, England where Interpol top security meetings will take place. Two M.A.D. agents in a speedboat kidnap Gadget and, after a wild ride around Thames river, trap him in a cage. They also cut a rope and Gadget starts to drown. Claw hires an impersonator named Presto Change-O to infiltrate the meetings as Gadget. Gadget manages to get back to the surface and, in front of Buckingham Palace, receives another assignment from Quimby: He has to stop Presto Change-O from infiltrating the meetings. Gadget puts on a disguise so he can catch Presto, who's shocked to find out that Gadget is still alive and, posing as Quimby, lures him out of the police headquarters. Armed with a camera, Penny tries to find Presto.
It is announced that the meetings are rescheduled from 3:00 to 1:30, which means that Gadget and / or Penny have 30 minutes to catch Presto. Gadget suspects a woman to be Presto, but the security guard clears the misunderstanding, saying he knows that woman. Gadget then suspects a soda dispenser (with Brain inside) to be Presto. Penny finally finds him, but as he's posing as Gadget at the same moment, she thinks he's her uncle. She eventually finds out that the Gadget she just met was Presto after seeing her real uncle still in his disguise. Penny finds Presto in a closet, but she gets caught by a security guard. Presto, still as Gadget, fools the security guard that Penny is Presto and gets her arrested.
Locked in a cell, Penny calls Brain to bring Gadget to the meetings as Presto might be there right now. Brain poses as Presto in front of Gadget, who calls out that Brain is Presto in front of the security guard. The security guard realizes his mistake and frees Penny. Brain lures Gadget to the meetings where the latter stays face-to-face with Presto. It is hard to tell which Gadget is which until the Gadget Mallet pops out of Gadget's hat and hits Quimby's head.
- The first few bars of the American presidential song "Hail To The Chief" can be heard in the instrumental intro at the beginning of the episode