Billy and Timmy earn a little extra pocket money by collecting golf balls. One day Billy finds his friend assaulted in the woods by the golf course. Jimmy says he was attacked by a man sitting in a grey Jaguar with another man and a lot of papers. He even identifies the man from a photograph that PC Rowan has borrowed from the club secretary Harry Fell. Severe stomach pains prevent Greengrass from placing a bet for a "friend", and the old scoundrel wishes he could disappear. Changes are on the way within the police and Inspector Barry commandeers sergeant Blaketon's office while he makes his report. Blaketon fears for his position and starts looking for another job.

Somebody breaks in at Jenny and Tim McDonald's house, but nothing seems to be taken. The next morning Tim McDonald is two hours late at work at a bank, because the intruder put back their clocks. The intruder turns out to be an old friend of Tim McDonald, a really bad apple called Carl Southall, and he claims that McDonald owes him a favour. There is an open tournament at the local golf club, and Greengrass plans to make a killing by entering a B. Scripps in the tournament and bet on him. Only it is not Bernie Scripps as the club manager Trevor Snape thinks, but Bernie's nephew Barry, who is a professional golf player. Greengrass spots an opportunity to make an even bigger killing when he learns that outside investors want to buy the club and turn it into an upmarket country club. He only has to become a member of the golf club to get a share of the sales money. That is all - or is it?