 When crafty Doc Wallace (Joseph J. Greene) sends for Johnny Trent (Tex Ritter) and his pal, Kansas (Fuzzy Knight) to come home to the Trent ranch in Arizona, Johnny meets Martha Brooks (Janet Shaw), who is caring for his invalid father (Erville Alderson), whose ranch some unknown enemy is trying to wrest away, as it has become suddenly valuable. Aided by Wayne Carson (Dennis Moore) and Martha, Johnny uncovers the culprit to be Doc Wallace, the supposed family friend.