Photo of Dennis O'Keefe, Phyllis Kirk and Lloyd Bridges from the drama-anthology television series Climax! This episode is "Edge of Terror". Bridges played a bandit/killer who terrorized Kirk and O'Keefe. According to IMDb, this episode aired Aug. 11, 1955. Date below may be incorrect.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.