Worlds Collide: The Manchester Bombing

ITV, 9pm, Monday and Thursday

It should have been a joyous occasion for thousands of young fans and their families in Manchester for an Ariana Grande concert in May 2017. Instead it turned into a night of horror when suicide bomber Salman Abedi murdered 22 men, women and children and left more than a thousand others injured.

Now, drawing on an extensive official inquiry, this authoritative two-part documentary tells the story of the events leading up to that devastating night and reveals what happened in the aftermath.

It’s an account of the radicalisation of Abedi, but also a moving memory of the lives that were claimed by his terrorist atrocity. It also attempts to answer crucial questions, such as whether Abedi could have been stopped, and about failings of the emergency services. ★★★★★