At the age of 23, David Harewood had a psychotic breakdown and was sectioned. Two years ago he opened up on Twitter about the experience - and now he wants to tell the full story. Travelling back to his home town of Birmingham, the actor lets viewers into the realities of experiencing a psychotic breakdown, and how much he blocked out at the time, meeting up with his mother and old friends who were with him at the time. But this isn't just his story. He also spends time with other young people living with psychosis and the NHS professionals who treat them.