When suspected drugs dealer Stephen Mason is found dead from a head wound after a night in a police cell, suspicion falls immediately on Ken Jackson, the officer who arrested him.

Elsewhere, the police are called in to a domestic argument involving father and daughter Clifton and Sonia Hilliard. Clifton is arrested and put in a cell for the night but Sonia is reluctant to reveal why her father beat her. In a desperate attempt to clear his name and save his career, Ken turns to Dangerfield and forensics expert Terri Morgan to unearth a crucial piece of evidence which tragically links the Hilliards to the arrogant Mason. Meanwhile Alison is settling in at college and Marty's new job is revealed - he's a dish-washer!