Ben Shires, Al Jackson and Haruka Kuroda witness record attempts from around the world in front of a live audience. Mr Cherry's Officially Competitive title is under severe threat from a determined Sizzling Steve, if not US-Ray. Our heroes face a challenge that combines bravery and bakery. Also featuring bottle-opening helicopters, outrageous acrobatics, supersonic motorised surfboards and, of course, the dreaded gunge tank of doom.

It's the final show of the series and Olympic skeet shooter Amber Hill attempts to smash a world record, as does a 1.5 tonne digger. In the final of Officially Competitive, Mr Cherry and Sizzling Steve battle it out for the championship and a record featuring chopsticks and marshmallows. And there's a final gungeing with a difference!

The best from the bunker. Featuring hula-hooping hero Marawa the Amazing, and we welcome back Cherry, Ray and Steve as they compete in front of a live audience - but who will face the Gunge Tank of Doom?