BBC Three HD

Programmes start at 7.00pm.

A round-up of the day's news.

Steve goes in search of ocean acrobats, mischievous coyotes and deadlies in miniature - but he ends up having an encounter with a humpback whale he will never forget.

Steve Backshall tracks cheetahs across Zambia by motorbike, witnessing epic hunting and the challenges faced by this endangered predator.

With the leaderboard closer than ever, all four teams leave Zaamin National Park and race towards the next checkpoint, Almaty, Kazakhstan's former Soviet-era capital.

Teenager Pip investigates the disappearance of 17-year-old Andie Bell. Contains some strong language.

Pip turns her attention to Andie's best friends and finds out Andie had a secret life. Contains some strong language.

When Pip follows new leads on the case, she takes bigger risks and enters the world of sex, drugs and rock 'n' roll. Contains some strong language.

An award-winning film-maker documents her best friend's journey into an assisted marriage. Contains some strong language.