When bumbling product-tester Fielding Mellish (Allen) is jilted by his girlfriend, Nancy (Lasser), he heads to the tiny republic of San Marcos for a vacation...only to become kidnapped by rebels! Once the band of rebels seize power, their leader goes crazy, and they replace him with Mellish, thinking he can save the country. But when Mellish is nabbed by the FBI, he is put on trial for subversion and in a side-splitting courtroom showdown - including the most hilarious self-cross examination ever.