Unforgotten

Cold case investigators DCI Cassie Stuart and DI Sunny Khan untangle lies that have been covered up for decades. What secrets have the suspects kept buried?

Watch a preview of Unforgotten IV.

Expires on Dec 29

Cassie and Sunny interview the four suspects, who all deny knowing the victim.

Expires on Jan 5

Cassie and Sunny discover that Walsh was chased by all four suspects on the night in question.

Expires on Jan 12

Cassie and Sunny interview two of the suspects again and get closer to the truth of what happened to Walsh. Things take...

Expires on Jan 19

As the team narrows down the suspects, will they succeed in bringing Walsh's killer to justice?