Tim Hart (Tim McCoy), a former Texas Ranger, comes out of retirement to avenge the death of Lightnin' Ed (Frank LaRue), his foster father, who had been sent to Rainbow's End, to investigate a series of train robberies. He senses that George Johnson (Walter McGrail) and his henchman, Speck (Bob Kortman), head the robbery gang, especially after Speck makes an ambush attempt on his life.
Tim McCoy
as Tim Hart
Kathleen Eliot
as Joan Carter (as Kathleen Elliott)
Walter McGrail
as George Reynolds aka Johnson
Mary Carr
as Mrs. Martha Carter
George Cooper
as Happy
