The Tower: Season 1

A veteran beat cop and a teenage girl fall to their deaths from a tower block in south-east London. Left alive on the roof are a five-year-old boy and rookie police officer Lizzie Adama, who disappears within hours. Detective Sergeant Sarah Collins is charged with leading the investigation, trying to track down Lizzie before she comes to serious harm and uncovering the truth behind what happened.

With Lizzie still on the run, Sarah finally persuades her boss, DCI Tim Bailie, to go public about Lizzie's disappearance.

When Sarah finally interviews Lizzie, the explosive truth about what really happened on top of the tower emerges.