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.
| Actor | Role |
|---|---|
 Charles 'Chic' SaleRufe Marvin | Rufe Marvin |
| DDiane SinclairLois Marvin | Lois Marvin |
 Frank AlbertsonJimmie Blake | Jimmie Blake |
 Preston FosterHinton | Hinton |
 Jackie SearlJackie | Jackie |
 Niles WelchCurtis | Curtis |
 Eddie KaneHerb Jackson | Herb Jackson |
| TTom B. FormanLefty | Lefty |
| JJack NongPete | Pete |
 Billy O'BrienJackie's Friend (uncredited) | Jackie's Friend (uncredited) |
| BBilly SeayJackie's Friend (uncredited) | Jackie's Friend (uncredited) |
| MMickey MartinJackie's Friend (uncredited) | Jackie's Friend (uncredited) |
| DDavid Leo TillotsonJackie's Friend (uncredited) | Jackie's Friend (uncredited) |
| BBilly MellmanJackie's Friend (uncredited) | Jackie's Friend (uncredited) |