Ranvir Singh

The celebrities show their true colours as they face testing individual and team challenges. A mystery box may offer an advantage, but two face the Duel and only one will survive.

The celebrities are pushed to the limits of both mind and body as they face two very different challenges. First, they step into a setting defined by power, pressure and persuasion, where reputation counts for nothing. Stripped of their public personas, they must rely on quick thinking to come out on top - but will they rise to the occasion or crumble under the spotlight? Next, the team challenge delivers a brutal test of nerve.

Gary Lineker continues to put the celebrities through their paces as the competition intensifies. With the boxes opening in ever more weird and wonderful locations, the fear of the unknown shows no sign of easing - but there's a shift in mood. The camaraderie is fading, replaced by growing mistrust. Singer JB Gill has played a fair and honest game but some begin to question whether he's as saintly as he seems.

As the celebrities continue their voyage into the unknown, risks are rewarded, a mystery box returns and one decision sends shockwaves through the group.

Gary Lineker puts ten intrepid celebrities through their paces as they are transported to mystery locations in boxes - with no rules and no instructions, they must try to beat each other in high-pressure challenges and avoid a head-to-head showdown in The Duel. As The Box messes with the celebrities' minds, they must successfully navigate one individual and one team challenge, determine whether to make friends or foes with their competition and avoid being the first celebrity sent packing.

Vick Hope, Ranvir Singh and Iain Stirling all try to 'say what they see' as they guess well-known phrases for the chance to win a 50,000 pound jackpot for their chosen charity.