Airwolf S02E10 - Once a Hero

String learns that Saint John may be held captive in a POW camp in Laos. Together with Dom, he recruits a couple of Vietnam veterans, one a daredevil, the other an up-and-coming politician, to go after his brother and bring him home. While they're in Cambodia, however, one of the team gets the jitters and reveals that he actually betrayed his comrades when they'd been captured by the enemy during the war. To that end, he not only has to redeem himself, but regain the trust of his companions.