When crafty Doc Wallace sends for Johnny Trent and his pal, Kansas to come home to the Trent ranch in Arizona, Johnny meets Martha Brooks, who is caring for his invalid father, whose ranch some unknown enemy is trying to wrest away, as it has become suddenly valuable. Aided by Wayne Carson and Martha, Johnny uncovers the culprit to be Doc Wallace, the supposed family friend.—Les Adams <longhorn1939@suddenlink.net>