The Light in the Hall is back, and Bear Grylls runs wild with Flight of the Conchords’ Rhys Darby. Plus: Timothée Chalamet’s Wonka! Here’s what to watch this evening
9pm, Channel 4
Caryl (Sian Reese-Williams) is making a midlife career change to journalism. As she trains, she is drawn to Rhys Owen (Mark Lewis Jones), who has returned to Llanemlyn after 30 years in prison for the murder of his activist cousin. What happened in Caryl’s life that makes her so curious about Rhys? And how does this fit in with the town’s controversial plans to expand the reservoir? A murky drama unravels. Hollie Richardson