When tornadoes hit a nuclear power plant, critically damaging the plant's cooling system, the results could be catastrophic. Atomic Twister, a countdown to disaster, traces an extraordinary day in the lives of small town citizens who unexpectedly find themselves facing the possibility of mass destruction.

A young man from a rural area is on the brink of success in the big city, but it all falls apart and he returns to his small home town, to his family and friends who all think he's a hero. His city girlfriend follows and they both discover that going home isn't always easy.

The story of the working and personal relationship between the comedians Peter Cook and Dudley Moore, a hugely popular duo in the UK during the 1960s and 1970s. Focusing primarily on Cook, the film traces the pair from their first meeting through their career as part of the Beyond the Fringe review, their television series Not Only... But Also and various other projects before their later estrangement as Moore became a successful Hollywood film star and Cook remained in the UK.