Things get serious as our Officially Competitive legends attempt a record involving ping pong balls and lots of shaving foam. Also, the magnificent Moffatt Brothers return to face their most difficult and dangerous record attempt yet - and who will end up in the Gunge Tank of Doom?

Featuring a world-record attempt from an incredible contortionist, and in the bunker there's a nail-biting competitive domino rally. Finally, will the Gunge Tank of Doom claim another victim?

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.