A study into the five tonne beast blocking London’s South Bank in Fatberg Autopsy: Secrets of the Sewers.

Underneath London’s South Bank, a monster is lurking.

It’s the biggest one ever found in the UK and it’s dangerous, deadly even, if it isn’t dealt with in the right way.

This stomach-churning study of the ‘fatberg’ that’s blocking the capital city’s sewer system sees scientists examine five tonnes of the beast – and the results say interesting things about the way we live today.