With everything hanging in the balance, our competitive heroes face a challenge that combines bravery and bakery. Also with outrageous acrobatics, and the dreaded Gunge Tank of Doom.

In the final of Officially Competitive Mr Cherry and Sizzling Steve battle it out for the championship, and there is a record featuring chopsticks and marshmallows. There's also a final gungeing with a difference!

Desiree Burch joins Ben Shires and Haruka Kuroda to present. British Olympian Claire O'Hara attempts a kayaking record with her husband in Sydney, Australia. And drag racer Tom Bagnall goes for glory in a go-kart - with a jet engine on the back! Also, we welcome back our Officially Competitive legends - Cherry, Ray and Steve - competing for records in front of a live audience in our secret bunker.