The film is a spy comedy, featuring a secret agent who has to recover a stolen attaché case.
Plot
Secret agent Boston Quackie embarks on a mission to deliver a crucial attaché case to the Slobovian consulate in West Slobovia, facing relentless attempts by spies to seize it. The pursuit unfolds aboard the Cloak & Dagger Express, where Quackie confronts a mysterious man with a green hat, suspected of theft.
Despite various encounters and a brief capture, Quackie ultimately outwits the thief with assistance from Mary and Inspector Faraway. Upon delivering the case to the consulate, Quackie is surprised to discover its seemingly mundane contents — a jar of instant coffee. However, to his amazement, the jar contains a surprise: a glamorous woman intended as an escort for an embassy ball.
^Beck, Jerry; Friedwald, Will (1989). Looney Tunes and Merrie Melodies: A Complete Illustrated Guide to the Warner Bros. Cartoons. Henry Holt and Co. p. 299. ISBN0-8050-0894-2.