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.

Other seasons of this show:

Line of Duty (season 1) Line of Duty (season 2) Line of Duty (season 3) Line of Duty (season 4) Line of Duty (season 5)

See also:

McLeod's Daughters (season 2)
Wu Assassins (season 1)
Dark Heart (season 1)
Luis Miguel: The Series (season 1)

Download links and episode guide:

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Episode 1    
S04E01 - In the Shadow of the Truth

Episode 2    
S04E02 - Who Sows the Wind

Episode 3    
S04E03 - In the Trap

Episode 4    
S04E04 - Moral Superiority

Episode 5    
S04E05 - Lying Nest

Episode 6    
S04E06 - Royal Hunting Ground