Looking to reform the corrupt government of his Old West town, newspaperman Jeff Rose is running for mayor against officeholder Nard Lundy (Edward Andrews). Jeff's campaign lacks the incumbent's muscle and money, and his quest looks hopeless until the arrival of his father-in-law, Capt. Oren Hayes (Pat O'Brien). Joined by three fellow former Texas lawmen (Walter Brennan, Edgar Buchanan, Chill Wills), Oren and his daughter, Hannah, help Jeff fight back against his antagonist's dirty tactics.