A Liverpool gang member wins a singing contest is then called up for National Service where he clashes with another soldier.
Unfortunately the movie These Dangerous Years is not yet available on Disney Plus.
| Directing | Herbert Wilcox | Director |
| Directing | Denis Johnson | Assistant Director |
| Writing | Jack Trevor Story | Writer |
| Production | Anna Neagle | Producer |
| Sound | Stanley Black | Original Music Composer |
| Camera | Gordon Dines | Director of Photography |
| Editing | Basil Warren | Editor |
| Production | Robert Lennard | Casting |
| Art | Ivan King | Art Direction |
| Costume & Make-Up | Paul Rabiger | Makeup Artist |
| Costume & Make-Up | Pearl Tipaldi | Hairstylist |
| Crew | A.J. Van Montagu | Scenic Artist |
| Sound | Charles Crafford | Sound Editor |
| Sound | Sash Fisher | Sound Recordist |
| Sound | John W. Mitchell | Sound Recordist |
| Sound | Len Shilton | Sound Recordist |
| Directing | Pamela Davies | Continuity |