Jeremy and Julian Lewis, the "Lewis Twins", are two unruly brothers who terrorise the city of Swansea from the caravan park where they live with their family. When their father, Fatty, is injured while working on a roof for local kingpin Bryn Cartwright, they try in vain to claim compensation. Thus begins a campaign of terror, which local policemen Terry and Grayo are ill-equipped to prevent, involved as they are in a drugs deal with Cartwright.
| Writing | Kevin Allen | Writer |
| Directing | Kevin Allen | Director |
| Art | Pat Campbell | Production Design |
| Art | Dave Arrowsmith | Art Direction |
| Costume & Make-Up | Graham Johnston | Makeup Department Head |
| Costume & Make-Up | Rachael Fleming | Costume Design |
| Camera | John Mathieson | Director of Photography |
| Production | Nina Gold | Casting |
| Production | Peter McAleese | Producer |
| Costume & Make-Up | Sarah Cherry | Makeup Artist |
| Art | Jean Kerr | Art Direction |
| Sound | Mark Thomas | Music |
| Editing | Oral Norrie Ottey | Editor |
| Sound | Colin Nicolson | Sound Recordist |
