The 4077th has just ended a rough 3-day ordeal with wounded soldiers. Charles plays (?) a French horn and drives Hawkeye and B.J. crazy. They refuse to bathe until the French horn playing is stopped; the two are even forced to eat outside because of their unhygenic presences. Meanwhile Potter attempts to saves the life of a patient, Saunders, whose unfortunate accident has rendered him suicidal. Time and time again, Potter pleads against Saunders' taking the easy way out; Saunders holds out until a little dose of reverse psychology finally discourages him. When a "battle of the bands" eventually erupts between Winchester, Hunnicutt and Pierce, the camp collectively intervenes and hoses down Hawkeye and B.O. while Margaret has a soldier run over Charles' French horn with a jeep. Later, Sang Nu presents Charles with a new horn...one which doesn't have a mouthpiece!