Monogram's Tom Keene western series continued its winning streak with 1942's Western Mail. As was customary, Keene is a good guy posing as a bad guy to get the goods on the other bad guys. While operating undercover, Keene befriends Lucky (Fred Kohler Jr.), the gone-astray brother of heroine Julia (Jean Trent). When the chips are down, Lucky proves he's still a right guy by laying down his life for Keene, thereby paving the way for a happy ending for our hero and the lovely Julia. Frank Yaconelli does his usual as Keene's Mexicano comic sidekick. ~ Hal Erickson, All Movie Guide