Unforgotten: Series 4 (2021)

The BAFTA-winning hit Unforgotten returns for a fourth series, as Cassie and Sunny investigate a cold case with alarming links to the police force.

A corpse is discovered in a scrap yard, his features frozen in time. Four suspects emerge. All four have links to the law and attended the same police training course back in 1989. Since then their lives have gone in very different directions.

The volatile chief superintendent with a point to prove and a past to forget. A seemingly successful businessman with a criminal past. A Cambridge-educated high-flying cop in a toxic relationship with her mother. And the daughter of a policing family, pushed into a career she cannot stand.

All now in their late forties, the police investigation has the potential to shatter their reputations, family relationships and the lives they've built over the last 30 years.

Unforgotten is released on DVD 26th April 2021 from BBC Worldwide.

Please note - Disc special features are subject to change, may differ from format to format and/or may differ from region to region.