The basic premise of the show revolves around Ken and Harry's various business ventures, which become intertwined with various shady characters or criminal underworld figures, often requiring Ken to outwit or fight their way out of trouble. Along the way, the pair often encounter others in need or have been hard done by, and many of the episode sub-plots see various wrongs being put right. In later series, this became the main focus of the show as Boon becomes a private investigator and bodyguard, with Harry's business activities becoming more of a backdrop. The comedic element usually comes from Harry's frequent minor misfortunes or his best laid plans going awry in unexpected and sometimes farcical ways - with Ken usually having to come to his rescue and sort out the mess.
