Chief: "This is the Narco-512." Max: ". . . How does it work, Chief?" Chief: "We're all familiar with the shock wave of a sonic boom which occurs when an aircraft breaks the sound barrier. If we could take that energy and amplify it 10,000 times, and confine it in a small area, can you imagine the results you'd get?" Max: "A rock 'n' roll festival?" Chief: "It's not quite that bad, Max."
A ruthless KAOS agent known as "The Whip" hypnotizes Maxwell Smart into stealing a revolutionary new weapon from The Chief's office! Has KAOS succeeded in turning Agent 86 from good to evil?
The Old Series Finale Trick! This is the last episode of the original series, screening just four months and 3 days short of the 5th anniversary of the airing of the pilot episode "Mr. Big" on September 18, 1965.
The episode, and therefore the series, ends with Larabee using the gong to hypnotize the Chief thereby securing promotion for himself and appearing to take over CONTROL!
The name of the episode's "MacGuffin", the stolen weapon, inexplicably changes from Narco 5-12 to Marco 5-12 in the second half.
Reality Check[]
The title refers to the 1967 Swedish film I Am Curious (Yellow), companion to 1968's I Am Curious (Blue), yellow and blue being the colors of the Swedish flag.