It's the Blue Peter Book Awards, so we find out which books win Best Story and Best Book with Facts, as well as who is surprised with a gold badge. Plus we see if a simple book can support the weight of two presenters on a zip wire.

Get set for Sport Relief with Radzi and guest presenter Brad from The Vamps! How will they fare when trying flatland BMX riding with record holder Matti Hemmings? Also, we kick off Lindsey and Radzi's very own Mega Mileathon challenge!