Mark Vararrif, an alien from a the planet Trothal 200 light years away, has been living on the Earth for fifteen years. He lives with his wife Peggy, also an alien, and their son Nathan who has super strength. When Mark was seventeen Zarkoff, a killer and renegade alien, abducted him and together they crashed in the ocean near the south coast of England. Zarkoff resurfaces fifteen years later with a new face and identity now controlling the world's largest company, Multiplixo Robots. Most aliens think Zarkoff is dead but Mark knows different and finds it difficult to warn them about the disaster heading their way. Finally, other aliens become aware of the danger but it's too late to stop World War Three and the invasion of an alien spacecraft that threatens to destroy the major cities on Earth.