Teenager Ben Wilson finds a mysterious emblem, which transforms him into super hero Captain Extraordinary, at the bottom of a river – that’s when his troubles begin… He has to learn to control his super powers, and fight an array of super villains including Dominic Renfield, who heads the evil organisation Nemesis. Ben has the erratic assistance of his pal Roy Bottle, the love of his life Vicki Van Horton, and orphan-with-an-attitude Wired. Captain X’s wise and surprisingly athletic mentor is Harry ‘The Green Termite’. On the dark side are Renfield and the beautiful but treacherous Ice.