M*A*S*H è una tragicommedia incentrata sulle vicissitudini del 4077th Mobile Army Surgical Hospital (Ospedale Chirurgico da Campo dell'Esercito) statunitense in Uijeongbu, Corea, durante la Guerra di Corea (1950-1953).
Molte delle situazioni raccontate, anche le più assurde, sono realmente accadute, come testimoniano molti dei veterani del conflitto.
Radar is driving Hawk, B.J., Sherman, and Frank in a bus back from a "medical conference" when they get lost. They stop to see if they can find anything they recognize. When they decide to turn around, they find that the bus does not want to start. Radar goes off in the middle of the night for the latrine, and does not immediately return. Stricken, Hawkeye wants to set out to find him, only to be stopped by Sherman. An injured Korean surrenders to get medical help from Hawk and B.J.. Upon Radar return, the Korean helps repair the bus and get them out of danger.