Routine tests on a traffic accident victim lead to shocking discoveries when the man's blood is found to be unidentifiable and x-rays reveal a disc embedded in his brain. His fabulous tale of being an escaped prisoner from an alien spaceship takes a turn for the sinister when the hospital staff realise that they're under a state of siege...
Unfortunately the movie Invasion is not yet available on Disney Plus.
| Directing | Alan Bridges | Director |
| Writing | Roger Marshall | Screenplay |
| Crew | Stan Shields | Special Effects |
| Camera | Peter Allwork | Camera Operator |
| Sound | Roy Norman | Sound Editor |
| Sound | Brian Blamey | Sound Editor |
| Crew | Jack Kine | Special Effects |
| Camera | James Wilson | Director of Photography |
| Art | Scott MacGregor | Art Direction |
| Production | Ronnie Curtis | Casting |
| Crew | Ronnie Whitehouse | Special Effects |
| Editing | Derek Holding | Editor |
| Costume & Make-Up | Jean Bear | Hairstylist |
| Production | Jack Greenwood | Producer |
| Costume & Make-Up | Benny Royston | Makeup Artist |
| Costume & Make-Up | Eileen Welch | Costume Design |
| Sound | Bernard Ebbinghouse | Original Music Composer |
| Sound | Red Law | Sound Recordist |
| Writing | Robert Holmes | Story |
