Former EastEnders actor Joe Swash teams up (and bunks up) with award-winning comedian Seann Walsh as they take on comedians Harriet Kemsley and Lara Ricote.

In the concluding half of the battle, one team find the keys and escape while the losers are locked in The Box forever.

Both teams lay siege to one another in Castle Mania, go head-to-head in The World Series of Everything, and put on the performance of a lifetime for Jimmy's minions in Ball Routine.

The celebrities attempt to beat their opponents (and gravity) in Sticky Situation, put their tastebuds to the test in Soda Sommelier, and begin to see the world from their partner's perspective (literally) in Body Swap.

Rachel Parris gets locked up with award winning actor and comedian Guz Khan as they take on the combined might of comics Josh Pugh and Amy Gledhill. In this opening half of the battle, both teams parachute 10,000 feet without leaving the box in Freefall, test their obedience in a game of House Rules and go head-to-head in The World Series of Everything.

In this concluding half of the battle, things get physical in a game of Face The Music, they test their general knowledge in True Colours, and hop out of bed and onto the saddle to play Call of Booty.

Reality star Jamie Laing gets locked up with comedian Nabil Abdulrashid. They'll be taking on Ted Lasso star Ellie Taylor and Jess Knappett. In this opening half of the battle, both teams get crafty in Exhibitionists, go head-to-head in The World Series of Everything and spin out in a game of Box Car Racers.

Both teams must resist temptation in Eyes on The Prize, stuff their faces in Going Going Scone, and smash balls against the clock in Shot In The Dark. Then in the final game, one team will find the keys and escape while the losers will be locked in the box forever.