Sun Hill gets a call about a man approaching young girls in a park. D.I. Burnside protests that the police cannot do anything until a crime is committed. Encouraged by D.C.I. Reid, D.C. Lines and W.D.C. Martella profile recent incidents, and notice that the target is getting bolder. P.C. Smollett has also noticed a pattern. Matters become more urgent when a girl goes missing from a playground.
Meanwhile, a shopkeeper hits his emergency alarm, resulting in units--including TSG--steaming in from all sides, when he is spat at by some children who stole a packet of crisps.
- Kevin Lloyd as D.C. Lines
- Nula Conwell as W.D.C. Martella
- Christopher Ellison as D.I. Burnside
- Carolyn Pickles as D.C.I. Reid
- Ben Roberts as Ch. Insp. Conway
- Huw Higginson as P.C. Garfield
- Colin Alldridge as P.C. Young
- Seeta Indrani as W.P.C. Datta
- Andrew Mackintosh as D.S. Greig
- Colin Tarrant as Insp. Monroe
- Nick Stringer as P.C. Smollett
- Jeff Stewart as P.C. Hollis
- Larry Dann as Sgt. Peters