A railroad detective is having a difficult time stopping or even slowing down a gang that is robbing the merchandise carried on the freight trains, with inside information. However, his son and his son's young friends notice something that helps the railway detective get on the right trail.

Charles 'Chic' Sale
Rufe Marvin
Diane Sinclair
Lois Marvin

Frank Albertson
Jimmie Blake

Preston Foster
Hinton

Jackie Searl
Jackie

Niles Welch
Curtis

Eddie Kane
Herb Jackson
Tom B. Forman
Lefty
Jack Nong
Pete

Billy O'Brien
Jackie's Friend (uncredited)
Billy Seay
Jackie's Friend (uncredited)
Mickey Martin
Jackie's Friend (uncredited)
David Leo Tillotson
Jackie's Friend (uncredited)
Billy Mellman
Jackie's Friend (uncredited)