Informer, 9pm, BBC1

PART two of this involving thriller finds Raza reluctantly embarking on his new life as an informant as Gabriel tasks him with getting close to Yousef’s brother, Dadir Hassan (Roger Nsengiyumva, pictured) — ‘Try to listen and not talk too much.’ Can Raza keep his cool and persuade the suspicious and unpredictable Dadir to open up to him?