An escaped World War 2 Nazi doctor impersonates a murdered English doctor so he can work on a vaccination to protect the Germans in their planned germ warfare.
Unfortunately the movie Counterblast is not yet available on HBO Max.
| Production | Louis H. Jackson | Producer |
| Sound | Hans May | Original Music Composer |
| Writing | Jack Whittingham | Writer |
| Directing | Paul L. Stein | Director |
| Costume & Make-Up | A. G. Scott | Hairstylist |
| Sound | Eva Catchpole | Sound Editor |
| Writing | Guy Morgan | Original Story |
| Camera | Moray Grant | Camera Operator |
| Costume & Make-Up | L.M. Tweedy | Wardrobe Supervisor |
| Sound | Harold V. King | Recording Supervision |
| Directing | Leigh Aman | Assistant Director |
| Costume & Make-Up | Henry Hayward | Makeup Artist |
| Editing | Joseph Sterling | Editor |
