Potter learns some unpleasant news about an old war friend and Hawkeye and B.J. come to the aid of the camp ping pong champ -- Who was forcibly conscripted in the Korean army.
The future of American and Japanese relations is at stake when Harm and Mac go to Tokyo to defend an ensign accused of rape.
Diana joins forces with Chinese and Soviets to stop a scientist (Roddy McDowall) who plans to turn the world into one huge volcano.
Can Magnum's family and friends help him out of limbo? Can he get himself out? Magnum is caught between life and death on the season premiere.
When the indictment against Quang Ki in his attempt to murder Magnum is dismissed, it becomes evident that the villain will stop at nothing to place Magnum's former wife and daughter in deadly jeopardy.