Gina Dawson is determined to prove her mettle as the first Woman Police Constable to serve in her hometown. But her resolve is tested on her first day when she encounters thieves, runaways, neglected children, and hazing from her fellow officers. Meanwhile, an abandoned mine yields a shocking discovery, and DI Burns and Sgt Fenton investigate a serious attack on a young woman.

When another woman is attacked in Victoria Park, Gina risks her career to prove Donald's innocence. Meanwhile Jack discovers some interesting information about the missing boys' case, and Pratt has some problems with a boy of his own.

Despite Fenton's threat, Gina can't ignore some new evidence, and she risks all in making one last attempt to prove Donald's innocence. As William Parker is laid to rest, a troubled Jack has a new suspect, and an attack at the café leaves an officer's life in danger.

The mystery deepens as Jack gets closer to finding the other missing boy, and the hunt for Eddie's attacker compromises Pratt's relationship with his son. The rapist strikes again, but this time with deadly consequences. Trouble at home pushes Gina and Jack closer together, but can she jeopardize everything she has worked for?

Gina's life is put in mortal danger when an attempt to lure the killer takes a deadly turn. Meanwhile, Jack makes a horrifying discovery about the killer's past, but can he get to Gina in time?

The traveling fair comes to Brinford, and the search for a runaway girl draws WPC Gina Dawson into a feud between the fair workers and a gang of Teddy boys. Back at the station, she struggles to remain professional when Jack makes a shock announcement. Meanwhile, Fenton clashes with the new DI when a dead body is discovered, but is there more to the mystery than either of them realize?