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

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.

Babátúndé Aléshé almost certainly knows what a rocket is, Emma Sidi swears loudly and Jack Dee's a dead ringer for a famous artist. Greg Davies awards points (some), praise (little) and pity (plenty).

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!)

Only Emma Sidi has yet to win an episode. Is this her time? Meanwhile, Greg Davies gags after opening a big jar, Andy Zaltzman makes a robot sing and a newly blond Jack Dee discusses hedgehogs.

Alex Horne shows off his prowess with a pair of pliers, Jack Dee adopts a charismatic New York accent, Emma Sidi enjoys a Taskmaster tipple, and Babátúndé Aléshé makes a lovely little otter.

Rosie Jones feels badly let down by her comedy hero Jack Dee, while Babátúndé Aléshé shouts about a fortune cookie. And Andy Zaltzman predicts the end of the world.

Andy Zaltzman deliberately dirties Alex Horne's trousers, Emma Sidi reveals a startling belief about socks, Jack Dee does some energetic air cycling, and Babátúndé Aléshé resorts to phoning a friend.

While the race for Greg Davies' gold-plated noggin remains too close to call, some important questions will be answered in this penultimate episode. What will Babátúndé Aléshé do with a power washer? Can Andy Zaltzman shoehorn cricket into yet another task? Will Jack Dee's son make his dad proud with some crucial information? Why has Rosie Jones smeared a plate with brown stuff? And what makes Emma Sidi such an effective supervisor? Rest assured, Alex Horne is on hand to note down all the crucial details.

It has been a particularly close series, but finally the 18th Taskmaster champion is set to be crowned by Greg Davies in this episode, the grand final. Andy Zaltzman, Babátúndé Aléshé, Emma Sidi, Jack Dee and Rosie Jones compete one last time, hoping for the points that will see them lift that storied golden trophy. But who will eat raw onion? Who will spot some tiny chairs? Who will punt a giant egg into the sky? And, most importantly, why is Alex Horne honking?