Time Limit [1957 - USA] Korean War drama

U. S. Army Colonel William Edwards is gather information to determine whether or not Major Harry Cargill, admittedly an enemy-collaborator while a prisoner-of-war in Korea, should face a court-martial. Cargill refuses to act in his own defense and all evidence points to his guilt, but Edwards notes that his record was exemplary until his capture and imprisonment by the North Koreans. General Connors, whose son died in the same prison camp, is pushing Edwards to complete his report so that Cargill can be punished. But Edwards' further investigation reveals that the general's son, Captain Joe Connors, was a traitor and had been killed by the American prisoners. The Koreans, in retribution, had forced Cargill to agree to collaborate or they would kill all of the American P.O.W.s. Edwards recommends no court martial, and then asks to be permitted to defend Cargill if his recommendation was not followed.