The award-winning presenter duo's weekend variety show returns, and this year, the pair have recruited Gogglebox star and I'm A Celebrity 2016 winner Scarlett Moffatt to become their new co-host. Ant and Dec have teased they have a very big role for Scarlett to fill in the first show, one that involves a very public stunt that could see her reach new heights - literally. The Geordie twosome prank Jamie Oliver in the first of this year's Undercover features, and The Voice UK coach Jennifer Hudson stars in the End of the Show Show. Also beginning tonight is The Missing Crown Jewels, Ant and Dec's follow-up to Who Shot Simon Cowell?, last year's comedy sketch whodunit. Emilia Fox is back to head up the investigation, as more celebrity guests are lined up as potential culprits in another mad-cap crime caper.