More than seven years after the world has become a frozen wasteland, the remnants of humanity inhabit a gigantic, perpetually-moving train that circles the globe as class warfare, social injustice and the politics of survival play out.

Queen Victoria strikes up an unlikely friendship with a young Indian clerk named Abdul Karim.

The life stories of history's greatest minds. From their days as young adults to their final years we see their discoveries, loves, relationships, causes, flaws and genius.

Lorraine and Ed Warren travel to north London to help a single mother raising four children alone in a house plagued by malicious spirits.

Ordinary young couple Gemma and Richard have just bought their first home and are expecting a baby. It's all very exciting, and the couple settles in nicely to their new pad. Except for the screaming and shouting they hear at all times of the night through their walls from the house next door. Listening more closely, pregnant Gemma is convinced that she's also hearing cries and smacking noises, which she is certain are the sounds of a toddler being abused. She and Richard have seen the child just once, but not since. Feeling morally obliged to act, the couple gather as much information as possible about what's going on next door. And after social services say there's nothing to worry about, Gemma becomes increasingly obsessed and she starts to spy on them in a way that raises questions about who is actually committing the crime — Gemma's neighbours, or Gemma?