Ant and Dec present the celebrity survival challenge, which returns for a 15th series. This year's unlucky contestants are Dragons' Den's Duncan Bannatyne, aristocrat Lady Colin Campbell, Spandau Ballet singer Tony Hadley, Most Haunted presenter Yvette Fielding, former boxer Chris Eubank, fashion guru Susannah Constantine, former X Factor creative director Brian Friedman, Hollyoaks star Jorgie Porter, footballer Kieron Dyer and Union J's George Shelley.