Sinead Keenan

If it's the fourth episode of Unforgotten, then it's probably time for a second body to turn up.

Perhaps unsurprisingly, Unforgotten Season 6's third episode reveals that victim Gerard Cooper was a pretty nasty piece of work, which calls into question everything we know about our suspects.

Unforgotten's second episode brings a blast from the past as DI Ram Sidhu returns to discuss his work on the original investigation into Gerard Cooper's disappearance. 

Sunny and Jess are back on a new case for Unforgotten Season 6 that involves a disappearance from 2021 and the reappearance of an old suspect.

With the passing of the torch from Nicola Walker's DCI Cassie Stuart to Sinéad Keenan's DCI Jesse James complete, here's everything to remember about Unforgotten's previous episodes ahead of Season 6's debut.

PBS fan favorite Unforgotten returns in August for Season 6 with a brand new cold case and a lovely new chemistry between its leads.