The Island (2025): Season 1, Episode 3

1 - 3: Episode 3

With the evidence at the sheiling matching Sir Douglas' new account of the night, DCI Halim is set on wrapping up the case. But Kat can't let her theory go - Sir Douglas is convincing, but Kat's sure it isn't the full story.

Meanwhile, Kat starts to suspect that the youngest son Ruaraidh's guarded behaviour at the sheiling yesterday was concealing something. In the hills above she finds charred remains of what appears to be Lady Mary's diary, and excerpts that hint at a deep betrayal in the family.