Informer 9pm, BBC One
Sharply written, beautifully directed, littered with unexpected details, and boasting a cast firing on all cylinders in every role, this excellent thriller is one of the best and most relevant series British TV has produced in recent years. Having been coerced into co-operating with counter-terrorism cops Gabe (Paddy Considine) and Holly (Bel Powley), Raza (Nabhaan Rizwan) is thrown into the deep end when he’s ordered to get close to Dadir (Roger Jean Nsengiyumva), who he previously met in police cells. But there are two things Raza doesn’t know: Dadir is the brother of Gabe’s other informant Yousef – and Gabe and Holly have just found Yousef murdered.
So a new face on Dadir’s patch is hardly going to be welcomed with open arms. Meanwhile, we learn more of Gabe’s troubling past.