The BEST episodes of Hidden (2018) season 3

Every episode of Hidden (2018) season 3, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Hidden (2018) season 3!

Sian Reese-Williams stars as DI/DCI Cadi John in this detective drama series set in north Wales. Each series revolves around a different murder. The series, filmed in Bangor and Snowdonia, was initially broadcast in Welsh on S4C and was later shown by the BBC in a bilingual Welsh/English version.

Last Updated: 9/14/2025Network: S4CStatus: Ended

7.40

53 votes

#1 - Episode 5

Season 3 - Episode 5 - Aired 11/7/2021

News arrives at the police station that a body has been found, and Cadi and Vaughan reach a realization about the case.

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7.38

68 votes

#2 - Episode 1

Season 3 - Episode 1 - Aired 10/10/2021

When a man's body is discovered in a river, Cadi and Vaughan are called to investigate. Cadi faces a dilemma about her own future.

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7.36

50 votes

#3 - Episode 6

Season 3 - Episode 6 - Aired 11/14/2021

The sadness of the situation is obvious as Cadi interviews Sion ' and what will happen to Glyn in the future' Cadi reaches a decision about her own future. The end of an era in many ways.

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7.32

60 votes

#4 - Episode 4

Season 3 - Episode 4 - Aired 10/31/2021

Cadi throws herself into her work and Sion receives some bad news about his own job. Sion demands some answers from Father McEwan.

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7.30

54 votes

#5 - Episode 3

Season 3 - Episode 3 - Aired 10/24/2021

Cadi and Vaughan interview Piotr, a Polish worker who is employed at the old hospital but he's reluctant to share any information with them. The sisters say goodbye to the house on the island.

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7.25

63 votes

#6 - Episode 2

Season 3 - Episode 2 - Aired 10/17/2021

Father McEwan check on Glyn to see how he's coping with what's happened ; this comes as a shock to Sion. Cadi has to face the fact that she's hurt someone who is important to her.

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