DC Glaze and PC McCann end up at loggerheads over each other's attitudes to policing when they work together to investigate a drugs case. A heated conversation and a brush with death for Glaze during the London Carnival inspire both officers to change their ways: McCann applies to take the sergeants' exam, and Glaze shaves off his afro.
An epilogue (showing Glaze getting a haircut and McCann applying for his sergeant's exam) is played over the closing credits in place of a trailer for the next episode.
- Karl Collins as DC Danny Glaze
- Clive Wedderburn as PC Gary McCann
- Simon Rouse as DCI Jack Meadows
- Matthew Crompton as PC Sam Harker
- Alex Walkinshaw as PC Dale Smith
- Suzanne Maddock as PC Cass Rickman
- Steven Hartley as Supt Tom Chandler
- Chris Simmons as DC Mickey Webb
- Tony O'Callaghan as Sgt Matthew Boyden
- Colin Tarrant as Insp Andrew Monroe
- Gary Grant as DC Paul Riley