Doc and Wishey run into some Nazi-agents, who want to smuggle bombs into the USA from a Mexican border hotel.
Acting
Bud and Lou's timing is illegally sharp.
Production
They built a whole Mexican resort on a backlot, gorgeous.

Director
S. Sylvan Simon
Trivia, insights & behind the scenes
This was Abbott & Costello's attempt to recreate their stage hit after Universal already sold the 1929 film rights to another studio.
Kathryn Grayson was forced into this by her contract despite wanting dramatic roles; she later became a MGM musical star in 'Anchors Aweigh.'