- Dr. Claw: So, you're the great Prest-O Change-O, the human chameleon.
- Prest-O Change-O: [chuckles] At your service.
- [Gadget enters the conference room to discover that Prest-O Change-O disguised as Gadget is already there. Chief Quimby looks and points at who he thought was Gadget in shock. Then, Gadget and Prest-O Change-O get into a stand-off]
- Inspector Gadget, Prest-O Change-O: [simultaneously] Arrest him, Chief! That's Prest-O Change-O! I am not! You are so!
- [first lines]
- Inspector Gadget: Ah, England. Totally charming, wouldn't you say so, Penny?
- Penny: [whilst using a pair of binoculars, sees a couple of M.AD. agents that are about to take Gadget for a little "boat ride" on the Thames] Oh, yeah. Lovely.
- Inspector Gadget: Lovely? That's all?
- Inspector Gadget: If I don't find Prest-O Change-O soon, the security of the free world could be in jeopardy!
- Inspector Gadget: [to a women, whom he thinks is Prest-O Change-O] Prest-O Change-O, you're under arrest!
- Security Guard: But, Inspector Gadget, I've known this girl for years.
- Inspector Gadget: How did you know I'm Inspector Gadget?
- Security Guard: Oh, just a hunch.
- [on the bridge overlooking the Thames, a couple of Englishmen are having a cup of tea, when they see Gadget being taken for a "boat ride" by the two M.A.D agents]
- Englishman #1: What ho! I say, did you see that?
- Englishman #2: Why, that's the world famous Inspector Gadget!
- Dr. Claw: Our mutual friend Inspector Gadget will be unable to attend the police security conference this year.
- Prest-O Change-O: Oh?
- Dr. Claw: Unfortunately, he met with an untimely death in a boating accident.
- Prest-O Change-O: [chuckles] And you want me to disguise myself as Gadget, and take his place?
- Dr. Claw: Correct. You see, every year at this conference, top secret plans are discussed. Plans to stop me! From doing what I do best! Of course, if I knew their plans in advance - heh - I really don't see how they'd have a chance against me.
- [Claw and Presto laugh]
- [as Gadget, Penny, and Brain are walking past Buckingham Palace, Penny suddenly notices Chief Quimby disguised as a Queen's Guard]
- Penny: Uncle Gadget? Isn't that Chief Quimby?
- Inspector Gadget: [takes a quick look] I believe you're right. How are ya, Chief?
- [Chief Quimby doesn't respond]
- Penny: He can't answer you. These guards have a rule against talking on duty.
- Inspector Gadget: Really?
- [after Presto, disguised as Gadget, tells the security guard that Penny is Prest-O Change-O, the guard then cuffs Penny]
- Penny: [to the security guard] Wait! You're making a big mistake! I'm Inspector Gadget's niece, and he's not Gadget!
- Prest-O Change-O: [using Gadget's voice] Impeccable research. I actually do have a niece.
- Security Guard: [to Penny] Okay, Miss Change-O, let's go!
- [Presto then discreetly laughs it off]
- Security Guard: [after seeing Gadget chasing Brain, of whom Gadget thought was Prest-O Change-O] If that was Prest-O Change-O, then I've locked up... oh, my!
- Penny: [locked up in a cell] What's the commotion out there?
- Security Guard: [panting] Gadget's found the real Prest-O Change-O!
- Inspector Gadget: Just what do you think you're doing? Pleasure boating is no place on a busy river like this!
- Inspector Gadget: [there is a traffic jam] It's just like I tell you at home, Penny, always make sure to pick up after yourself. Even a child's tricycle can be dangerous if it's left out on the sidewalk. Yes sir, I'd really like to talk to the idiot who caused this mess.
- Policeman: Excuse me, sir, is that your van?
- [Points to the Gadget Van parked in the middle of the road, which has caused the grid lock]
- Inspector Gadget: Why yes, it is my van. Hmm, how on earth did it get there?
- Chief Quimby: Congratulations, Gadget. Great job. You stopped Prest-O Change-O from infiltrating our top secret meeting.
- Inspector Gadget: Well, Chief, I knew we'd find him. It was just a matter of timing.
- Penny: [after seeing who she thought was her Uncle Gadget, but was actually Prest-O Change-O disguised as and impersonating her Uncle Gadget] I wonder why Uncle Gadget isn't wearing his disguise?
- Penny: [after hearing an announcement about the top security meeting being rescheduled for 1:30. Looks at her watch and gasps] It's 1 o'clock! I'd better work fast if I'm gonna help find Prest-O Change-O!