Insp. Watt and D.C. Stone are on the trail of Leyton, who used money stolen, from a bank raid, to buy a car but is now under pressure wash the money from friends still in prison. Retired Bob Blackett joins Wyvern from Newtown.
A gang safe breakers are at large in the Wyvern area. Sgt Hawkins gets a tip, from a snout, that there's going to be break in at National Plastics. While Crime Squad wait, Daycliff Engineering is robbed but Barlow thinks they'll be back.
D.S. Hawkins and D.C. Dwyer are tipped off about target Phil Race but unable to nail down what is latest scam is. However Race's attempts to blackmail a businessman Ben Snow backfire when his wife goes to the police.
