An unusually heavy barrage of artillery crossfire forces the 4077th to evacuate. The men and women of M*A*S*H to refuge in a tiny, dark, damp cave--whereupon Hawkeye (Alan Alda) reveals in disturbing fashion that his claustrophobic. As the others try to adapt (none too quietly or successfully) to their unhospitable new surroundings, a crisis develops in the form of a seriously wounded patient in dire need of an extremely delicate operation. ~ Hal Erickson, Rovi