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.
Klinger redecorates his quarters, but the resultant ridicule he receives drives him to new heights in his efforts to get out of the Army. Meanwhile, the doctors are perplexed by the reaction of an Asian-American war hero who tries to kill himself when he's told that he will be going home. Sidney Freedman is called in to assist.