The Metaliens, alien robots intent on galactic domination, encounter a major setback. Their enormous Space Saucer, 'Compromise', enters a black hole in a strange, uncharted region of Space, and collides with another craft – sending the Kleptonite Ball, their precious cargo and the key to Universal Conquest, hurtling to a planet inhabited by primitive life forms: Earth. Having materialised in a bar, the Ball variously functions as a Christmas tree decoration, a bathroom ornament, and a fortune-teller's prop. The Metaliens must retrieve the Kleptonite Ball if their mission is ever to succeed. And that's when their problems really begin…
| Directing | Anthony Simmons | Director |
| Production | Ray Corbett | Producer |
| Production | Verity Lambert | Executive Producer |
| Writing | Gray Jolliffe | Writer |
| Production | Johnny Goodman | Executive In Charge Of Production |
| Camera | Freddie Young | Director of Photography |
| Sound | Denis King | Music |
| Sound | Denis King | Conductor |
| Art | Peter Richardson | Production Design |
| Editing | Peter Boyle | Editor |
| Directing | Linda Agran | Script Coordinator |
| Directing | Adrian Rawle | Assistant Director |
| Production | Marilyn Johnson | Casting Director |
| Directing | Alison Thorne | Continuity |
| Camera | Trevor Coop | Camera Operator |
| Camera | Peter Biddle | Focus Puller |
| Sound | Don Brown | Sound |
| Sound | Peter Pennell | ADR Editor |
| Art | Tony Kerr | Construction Manager |
| Art | Chris Jefferies | Property Master |
| Sound | Steve O'Brien | Sound Assistant |
| Sound | Adam Samuelson | Sound Assistant |
| Production | Lorraine Goodman | Production Assistant |
| Crew | Sally Croft | Unit Publicist |
| Directing | Peter Richardson | Second Unit Director |
| Crew | Mike Fox | Second Unit Cinematographer |
| Crew | Ken Worringham | Second Unit Cinematographer |
| Camera | Brian King | Other |
| Writing | Gray Jolliffe | Story |
| Writing | Peter Richardson | Story |
| Writing | Ray Corbett | Story |
