Episode 1

E1

PC Kat Crichton confronts her past when assigned to a murder case on the Isle of Harris.

Episode 2

E2

Kat fights to gather evidence against Sir Douglas, but new revelations change everything.

Episode 3

E3

The case is coming to a close, but Kat still believes the Macleans are hiding something.

Episode 4

E4

With her career hanging in the balance, it's Kat's last chance to catch Mary's killer.