A young soldier uncovers a ring of spies when he investigates his brother's mysterious murder.
You can now watch Criminals Within online on the following streaming providers in the United States.
| Directing | Joseph H. Lewis | Director |
| Writing | Edward Bennett | Screenplay |
| Writing | Arthur Hoerl | Story |
| Production | E.B. Derr | Producer |
| Editing | Howard Dillinger | Editor |
| Production | Earl Sheffer | Production Manager |
| Production | George R. Batcheller Jr. | Executive Producer |
| Camera | Arthur Martinelli | Director of Photography |
| Directing | William Strohbach | Assistant Director |
