Joanne McNally, John Robins, Nick Mohammed, Sophie Willan and Steve Pemberton are hoping they'll still have a career after tasks involving roller blinds, a floating primate and, as is traditional, eggs.

Will Steve Pemberton's no-vowels gamble pay off? Why does Sophie Willan love to balance items on her head? What does Nick Mohammed think is going to happen to those eggs? And why is Joanne McNally sniffing Little Alex Horne's beard?

Greg Davies draws on his wicked Inbetweeners alter-ego as he sets Katherine Ryan and other celebs cruel tasks, from pet rescue to pineapple concealment.

The celebrity torture is almost over as the series climaxes. Aisling Bea leaps cushions, while Bob Mortimer educates us on Dumfries and Galloway.

Tim Vine strips to his waist, Russell Howard gets tattooed, while Alice Levine apes Leonardo da Vinci using squirty cream.

Russell Howard charms a nice lady called Carol and Liza Tarbuck makes a puzzle for children, that should not be seen by children.

Sue Perkins makes an extraordinary noise, Julian Clary gets on his hands and knees, and Lucy Beaumont creeps everyone out. Sam Campbell proves adept at identifying colourful birds, and Susan Wokoma is grateful for her formal acting training.

Steve Pemberton experiments with G-force, Sophie Willan splatters a human pigeon and Joanne McNally rocks a traffic cone. In other news, Nick Mohammed gets trapped under a bed.

As the bonce-battle intensifies, Steve Pemberton delivers a timely message of peace. Meanwhile, Joanne McNally invents a catchphrase, and John Robins gets creative with beans.

Alex Horne risks raising Greg Davies' hackles with a task in celebration of himself. Steve Pemberton has an expletive-laden row with a bin. Plus: a novel use for a cow's ear.

It's the grand final! But before a new champion gets the honour of clutching Greg Davies' gilded bonce to their proud chest, Nick Mohammed makes a magical prediction.

Andy Zaltzman, Babátúndé Aléshé, Emma Sidi, Jack Dee and Rosie Jones search for a seal, hurl yoga balls in a theme park and force-feed Little Alex Horne a bowlful of bubblegum.

Greg Davies makes a regrettable promise involving his trousers. Alex Horne has trouser issues of his own thanks to Rosie Ramsey. Stevie Martin punches a mannequin in the groin.

Jack Dee has a dramatic wardrobe change, Rosie Jones presents her new baby, and Emma Sidi's got Tamzin Outhwaite on the brain. Plus: multi-headed beasts, and a very dull ghost.

Richard Osman and Doc Brown are amongst the funny folk who have to impress a guy in gold chains: the Mayor of Chesham! Greg Davies sets the nutty tasks.

Andy Zaltzman takes a carrot-based risk. Emma Sidi performs some cartwheel tricks. Rosie Jones menaces a member of the crew. Alex Horne rings a bell (or two!)

Hugh Dennis, Joe Lycett, Lolly Adefope, Mel Giedroyc and Noel Fielding fell rubber ducks and destroy cakes to impress the very demanding Greg Davies.

The comics retrieve pineapples from a pond and inventively repurpose umbrellas. And in a fitting climax, Frankie Boyle goes to town on a gigantic cat scratching post.

Nursery rhyme music videos are the flavour of episode two and viewer discretion is advised for Jon Richardson’s disturbing take on Three Blind Mice. Plus find out why Doc Brown isn’t an egg man.

Johnny Vegas yells from a tall chair, Katherine Parkinson forgets how balloons work and Richard Herring flails around in a dinghy.

Daisy flirts with a security guard, Richard is surprised by some chickens and Johnny convinces Alex to wear sparkly shoes while operating heavy machinery.

Alex Horne gets an acting role, while Richard Herring delivers a star turn from behind a bush. Mawaan Rizwan nicks a cup of tea. Johnny Vegas takes a tumble.

Greg Davies sets Aisling Bea, Bob Mortimer, Mark Watson, Nish Kumar and Sally Phillips brilliantly bewildering tasks, including basketball without hands!

Greg Davies sets tasks that are bizarre, cruel - and also very funny. Sally Phillips faces an amorous watercooler. Aisling Bea crams a dish into a balloon.

The consensual celebrity humiliation continues at the hands of wicked Greg Davies. Bob Mortimer champions sausage meat, while Sally Phillips returns to the womb.