BBC Three HD

Programmes start at 7.00pm.

A round-up of the day's news.

Steve searches for giant bait balls in Mexico.

Steve searches for deadly animals living in the capital of Suriname.

After more than 11,000km across eight countries, the teams face one final test of endurance as they race to claim victory at the finish line in Hatgal, Mongolia.

Six months after the race, all five teams reunite to relive their 12,000km journey from Palermo to Mongolia, with unseen moments and unprecedented behind-the-scenes access.

1/4. Louis Theroux explores how some people's most fervent beliefs can lead to conflict. Contains some strong language and some upsetting scenes.

2/4. Louis Theroux explores how America has taken our darkest desires and commodified them. Contains very strong language and some scenes of a sexual nature.