Manson and the team continue to interview potential witnesses in the Amy Tennant case. As Perkins and De Costa interview Amy's gymnastics teacher, they discover that a parent of one of the children made a complaint when the man entered the girls changing room, claiming to be looking for a missing purse. When they discover that the man is in fact a former sex offender who has changed his name, he soon becomes prime suspect in Amy's disappearance. Meanwhile, Nadir investigates when a war breaks out between members of the E1 gang - including the trashing of a snooker hall, an assault on the elderly owner, and then a shooting at a record shop run by Jordan Tomlin.
