The best from the bunker. The world-famous Moscow State Circus attempt a fiendishly difficult juggling and leapfrogging record, and our Officially Competitive heroes compete in an unusually tricky walking record. Also, someone comes face to face with a tank full of gunge.

Ben Shires, Haruka Kuroda and Al Jackson present yet more breath-taking record-breaking. Featuring a dizzying demonstration with a Cyr wheel, and the Officially Competitive warriors take on a chopstick challenge and, as always, one of them will face banishment to the Gunge Tank of Doom.

Gold medal-winning Paralympian John Walker tries an archery record, there's a tricky golf-themed record in the bunker, and one of our Officially Competitive legends will be hoping to be saved from the Gunge Tank of Doom by his bum-scooting allies.