Series 4
20176 Episodes
The fourth series sees AC-12 facing their most devious opponent yet! Under pressure from her superiors, DCI Roz Huntley charges a young man with a series of murders after months of fruitless investigation, but is he guilty? The Chief Forensic Investigator has doubts and turns to AC-12.
All Episodes
S4 E1: Episode 1
S4 E2: Episode 2
S4 E3: Episode 3
S4 E4: Episode 4
S4 E5: Episode 5
S4 E6: Episode 6