Wallace Beery and Marjorie Main are back in the saddle in this rowdy Western comedy costarring J. Carroll Naish and Darryl Hickman. While riding shotgun on an express wagon transporting gold, Tiny Tucker (Main) is saved from outlaws by bushwhacking horse thief Just Baggot (Beery), a bandit who missed getting there first. Accepting a job as her driver, Baggot struggles to stay on the straight and narrow, while Tiny will do what she can to keep him an honest man, even if she has to blast his head off to do it. Directed by Norman Z. McLeod (The Paleface) and based on a story by C. Gardner Sullivan (The North West Mounted Police), Jackass Mail was the fourth pairing of screen couple Beery and Main, a crowd-pleasing partnership that spanned seven films and ended only with Beery's 1949 passing.