Freddie Flintoff hosts as eight celebrities take part in a cycling challenge to raise money for Unicef, following a route made famous by the Tour de France as they battle across the Yorkshire Dales to reach the finish line in Emmerdale. Team England's Alex Beresford, Sair Khan, Barney Walsh and Rebecca Sarker take on Team World's Keith Duffy, Maura Higgins, Joe McFadden and Zoe Lyons, with British cycling legend Bradley Wiggins putting them through their paces.