Two English cartographers visit the small South Wales village of Ffynnon Garw, to measure what is claimed to be the "first mountain inside of Wales". It's 1917, and the war in Europe continues. The villagers are very proud of their "mountain", and are understandably disappointed and furious to find that it is in fact a "hill". Not to be outwitted by a rule (and the Englishmen who enforce it), the villagers set out to make their hill into a mountain, but to do so they must keep the English from leaving, before the job is done. Written by Rob Hartill

Becky thinks Chloe has the perfect life. Years after Chloe abandoned her when they were teenagers, Becky still obsessively watches Chloe's life through her picture-perfect social media. But when Chloe dies suddenly, Becky's need to find out how and why leads her to assume a new identity and infiltrate the enviable lives of Chloe's closest friends. Who was Chloe? What happened to her? And why does Becky think Chloe was trying to send her a message before she died? Through her alter-ego Sasha, Becky becomes a powerful, transgressive heroine, trapped in a dangerous web of lies, only some of which are her own.

Ruth travels to a seaside holiday park to stay with her boyfriend Tom. It's off-season, so the resort is mostly deserted, except for a few residents and a handful of staff charged with sprucing up the place. Ruth gradually settles into her new environment, finding work and making a new friend in the form of make-up enthusiast Jade. But one afternoon, while giving Tom's caravan a spring clean, Ruth finds evidence her beau might be cheating on her. As her desire to uncover the truth turns into an obsession, she begins to realise she might be looking for something else entirely.

A wealthy family hosts a sumptuous dinner, only for a mysterious young server to chillingly unravel their lives with terrifying consequences they could never see coming.