Whilst on a mission in the Persian Gulf, SAS Sergeant Nick Stone is blasted by a nuclear explosion into the future, where the last remaining humans, such as the predatory Leeshar, rule over the eugenically-modified animal castes known as ''Yujees''. Accompanied by catgirl Liana, bullman T-Bone and loyal wolfman Gruff, Stone discovers that this bizarre world is his own - the continent he roams being South America, its poles mysteriously inverte, and is intent on ending Leeshar''s dark reign by leading the slave-like Yujees in rebellion!