In a Welsh coal mining valley, a young man with a beautiful singing voice is called upon to make the ultimate sacrifice when a pit disaster threatens.
| Directing | Pen Tennyson | Director |
| Writing | Alfredda Brilliant | Story |
| Writing | Pen Tennyson | Screenplay |
| Writing | Louis Golding | Screenplay |
| Production | Michael Balcon | Producer |
| Production | Sergei Nolbandov | Associate Producer |
| Crew | Roy Kellino | Cinematography |
| Crew | Glen MacWilliams | Cinematography |
| Editing | Ray Pitt | Editor |
| Art | Wilfred Shingleton | Art Direction |
| Costume & Make-Up | Heinrich Heitfeld | Makeup Artist |
| Production | Frederick James | Production Manager |
| Directing | L. C. Rudkin | Assistant Director |
| Sound | Stephen Dalby | Sound Recordist |
| Camera | Jeff Seaholme | Camera Operator |
| Camera | Wilfrid Newton | Still Photographer |
| Writing | Herbert Marshall | Story |
