Line of Duty Season 5

An organised crime group hijacks a police convoy transporting seized drugs and kill three armed officers; AC-12 suspect that undercover police may be involved. They discover that the undercover officer is DS John Corbett and not, as originally assumed, Lisa McQueen. Sergeant Jane Cafferty survives the attack, drawing suspicion. PC Maneet Bindra is interviewed by Superintendent Hastings, DS Steve Arnott and DI Kate Fleming, due to her involvement with her cousin, Vihaan Malhotra, in spying on AC-12 and leaking information to the organised crime group for ACC Derek Hilton. In a further attempt to protect Malhotra, she contacts the organised crime group. Corbett accuses her of infiltration and she is killed.