Cassie and Sunny interview each of the four suspects, who all deny knowing the victim. Boulting discovers Walsh was cautioned three weeks before his passing and believes it was with Ram, while Collier manages to locate the rest of Walsh's body.

Unforgotten Season 4 Episodes...

• s04e01 - Series 4, Episode 1
• s04e02 - Series 4, Episode 2
• s04e03 - Series 4, Episode 3
• s04e04 - Series 4, Episode 4
• s04e05 - Series 4, Episode 5
• s04e06 - Series 4, Episode 6

Unforgotten Show Summary

Nicola Walker and Sanjeev Bhaskar star as detectives investigating a 'cold' cuddle case of 39 years ago.
When the bones of a young man are found beneath the footings of a demolished house, an investigation begins that will unravel the lives of four people who have been waiting for this moment for nearly forty years, as they discover that the past can't, and won't, stay buried forever.