In late 1944, an American guerilla unit led by Capt. Matt Reardon (Edmond O'Brien) learns that a Japanese plane carrying Admiral Amara (Philip Ahn) has crashed in China, in warlord-held territory. Reardon and his men are placed under the command of Naval Intelligence officer Commander Bert Thompson (Barry Sullivan) and sent on a mission to ransom Amara -- who is not only the head of Japanese naval intelligence, but also one of the few ranking officers in the Japanese high command known to have questioned the wisdom of continuing the war -- treat his injuries, and bring him back into American hands. Apart from the instant dislike that Reardon takes to Thompson -- a staff officer with no jungle combat experience, who has spent most of the war working in diplomatic circles -- the mission is complicated by the large amount of emergency surgical gear, plus the doctor and his aides that Reardon has to get alive through the jungle, and this is made even worse by the fact that one of them is his surgical nurse, a woman (Jocelyn Brando). When Wu King (Leon Askin), the warlord with whom they're dealing, proves to be less than trustworthy, Reardon and Thompson have to come up with a way of getting past his larcenous nature and getting Amara out of China before the Japanese soldiers sent to rescue him arrive. In the end, the two officers discover that, though they may have gotten to this place by very different paths, they have the same goal -- and each is prepared to go as far as the other to see it through.
~ Bruce Eder, All Movie Guide