1. Episode 1

6.167

. 6 November 2024. 59 min

When her friend doesn’t get home one night, Tosh persuades DI Calder – now a resident of the Isles – that something is wrong.

2. Episode 2

5.6

. 13 November 2024. 58 min

The hunt is on for Ian Bett as a picture of Anton Bergen begins to emerge. Are Calder and Tosh dealing with the revenge of a jealous ex-husband?

3. Episode 3

5.4

. 20 November 2024. 58 min

As Calder and Tosh wrestle with the revelation of Annie’s past, Noah offers a cryptic clue about the night she was killed.

4. Episode 4

5.6

. 27 November 2024. 58 min

The team uncovers the sinister truth behind the facility. But the investigation is diverted when Astrid Jakobson goes missing.

5. Episode 5

5.4

. 4 December 2024. 58 min

Calder and Tosh discover the truth behind Rossi’s mission. They must identify Annie’s killer before he can exact his revenge.

6. Episode 6

5.3

. 11 December 2024. 58 min

Calder and Tosh turn their focus onto Lisa, until her confession unearths a shocking event and leads the team back to Annie’s inner circle.