- Det. Steve McGarrett: [Upon looking at the list of stolen travelers checks] Mobs must be slipping... Fencing this stuff is like trying to sell hot badges at a policemen's picnic.
- Det. Steve McGarrett: [the teacher on the plane was just murdered] What have we got, Chin?
- Chin Ho: He caught two in the head from a piece with a silencer... No witnesses, nobody heard anything... A professional job.
- Det. Steve McGarrett: [Steve is discussing the stolen traveler's checks with Frank] How do you figure something like this?
- Frank Okawa: Who knows?... There's always somebody who thinks he can beat us... Til they find out they're wrong.
- Det. Steve McGarrett: A college professor gets sick on a plane, and gets hit less than an hour after he lands in Hawaii... Why?
- Professor Ambrose Pierce: As if killing those two men on the armored truck wasn't bad enough.
- George: You wanted your checks, Professor.
- Professor Ambrose Pierce: And now this... There was supposed to be no unnecessary violence... That was the agreement!
- George: [to Professor Pierce] You gotta learn how to start trusting people, Professor... Just think how much we're trusting you.
- Det. Steve McGarrett: [Dan has information on the teacher that was murdered] Checks in Philly?
- Danny Williams: Yeah... That and a rundown on the murder victim from the California State Police.
- Det. Steve McGarrett: Let's have it.
- Danny Williams: Whitney Davis, age 40, unmarried, economics instructor, Pacific Western College... Now away on a summer vacation. It all checks out, except for one thing.
- Det. Steve McGarrett: What's that?
- Danny Williams: The real Whitney Davis just sent his brother a postcard from Paris.
- Danny Williams: [to Steve] The report just came in on the dead man's fingerprints... Guess who just became a school teacher?
- Det. Steve McGarrett: [Reading from file] Real name, Floyd F.X. O'Neal... Alias Foxy O'Neal, alias Francis Rogers, alias Harpy Wilton... Hometown Chicago, five arrests, three convictions... Embezzlement, bunco, and fraud.
- Det. Steve McGarrett: A Chicago hood comes over here with a teacher's group, and he gets hit by a syndicate torpedo who also happens to be in Hawaii. Now why?... Why?
- Professor Ambrose Pierce: [On hearing McGarrett's theory that there may be crooks within his club] Your theory is highly unlikely.
- Det. Steve McGarrett: But possible, you will admit... Huh?
- George: [Talking to the Professor about a possible investigation] Pretty soon, they'll put one and one together.
- Professor Ambrose Pierce: I think one and one are together right now... And that's not simple addition.
- George: [George pulls a gun on the Professor] Professor... You're too smart a guy to make a big mistake now... And I'm too nice a guy to let you.
- Det. Steve McGarrett: [Talking to Chin about the scheme] Of course this was inevitable... Just like every other part of this crazy jigsaw puzzle's inevitable... What a scheme.
- Det. Steve McGarrett: First, the heist in Denver, three quarter of a million dollars in traveler's checks... Then they peel off 10,000 dollars and plant them in Philly to make it look like the gang headed east, but really comes here to Honolulu... On a weekend when all the banks are closed.
- Chin Ho: A hundred fifty crooks with phony teacher's ID cards.
- Det. Steve McGarrett: I assume they're all phony, except the Professor's. Which means it's probably his plan... With the backing of the mob. A perfect plan. But then...
- Chin Ho: Guy gets sick.
- Det. Steve McGarrett: Yeah, he's taken to a hospital babbling... Mob is afraid he'll give them away.
- Chin Ho: So, they hit him quick... That stops the babbling.
- Det. Steve McGarrett: Picture complete!
- Det. Steve McGarrett: [On plane's intercom] Ladies and gentlemen, this is not your Captain. There will be no departure time, and your trip will average 15 to 20 years... And if you're tempted to try anything foolish, just look through the windows. Both sides of the plane.
- [Police cars and a paddy wagon are arriving]
- Professor Ambrose Pierce: George, one last partnership decision.
- George: Yeah?
- Professor Ambrose Pierce: Do you mind if I check this now?
- [Holding bag with money]