Mezue ahịrịokwu na-esonụ: Canadian Commando Major Jamie Wilson (Lloyd Bridges), na-eme atụmatụ na-eme atụmatụ na-eme atụmatụ na-eme atụmatụ na-eme atụmatụ na Axis na-ejide ọdụ ụgbọ mmiri French nke Le Clare; ọ bụrụ na e bibiri ya, ndị Germany ga-ewepụ naanị ọdụ ụgbọ mmiri na-enweghị ike ijikwa nnukwu ụgbọ agha ha. Atụmatụ Wilson, nke aha ya bụ "Operation Mad Dog", bụ ịkwanye ụgbọ agha na-ebu agha juputara na tọn bọmbụ n'ọnụ ụzọ mpụga nke ọdụ ụgbọ mmiri ahụ, ebe ndị agha ya na-emebi ụlọ ọrụ ọdụ ụgbọ mmiri na ndị agha, wee mezie ụgbọ agha na-agbawa agbawa. Onye na-emegide Wilson bụ Royal Navy Captain Owen Franklin (Andrew Keir), onye e gburu nwa ya nwoke n'ọdachi Wilson gara aga
Ụdị mwakpo a na-eme na Dieppe n'ụsọ oké osimiri France na Le Plagé.