Support Provided By
Unlock with PBS Passport
1:22:41
Tessa, Sara, Colin, and Marion each have a motive—but also an alibi.
Unlock with PBS Passport
1:23:05
The victim’s life comes into focus; it was a mess.
Unlock with PBS Passport
1:23:01
A waterlogged suitcase holds the remains of David Walker, 25 years after he disappeared.
Unlock with PBS Passport
1:23:12
A second cold case solves the mystery.
Unlock with PBS Passport
1:23:02
Cassie and Sunny dig deeper into Jimmy’s murder, which involved torture.
Unlock with PBS Passport
1:23:01
DCI Cassie Stuart and DS Sunny Khan confront a skeleton buried in a cellar.
2:27
Get a refresher on the dramatic events of Season 3 and the harrowing finale.
0:30
Cassie and Sunny identify four potential suspects who trained as police officers together.
0:30
Cassie and Sunny interview the four suspects, who all deny knowing the victim.
1:30
The most dramatic season yet begs the question: who exactly is fighting for justice?
0:30
Can Sunny, Jess, and the team bring the clues in the case together to solve it?
0:31
DCI James joins DI Khan to investigate human remains found in an old home in West London.
