Beneath a small town exists The Loop, a scientific research facility. The townspeople end up experiencing an altered version of reality, where impossible things become possible. Each episode follows one townsperson, or a particular group of townspeople, and their experiences with The Loop.

Slough House is a dumping ground for members of the intelligence service who've screwed up: left a service file on a train, say, blown a surveillance, or become drunkenly unreliable. They're the service's poor relations, the slow horses and most bitter among them is River Cartwright, whose days are spent transcribing mobile phone conversations. But when a young man is abducted, and his kidnappers threaten to behead him live on the internet, River sees an opportunity to redeem himself. But is the victim who he first appears to be. And what's the kidnappers' connection with a disgraced journalist. As the clock ticks on the execution, River finds that everyone involved has their own agenda.

A woman who wakes up every night at exactly 3.33AM, in the middle of the so-called devil's hour between 3AM and 4AM.

Seven strangers from different walks of life forced together to complete a community payback sentence in Bristol.

A grieving therapist starts to tell his clients exactly what he thinks. Ignoring his training and ethics, he finds himself making huge changes to people's lives - including his own.

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