Gem, Captain Sinker, Cook and Line don't always get things right. Watch this clip to see what happens.

Visit CBeebies at http://www.bbc.co.uk/cbeebies'>http://www.bbc.co.uk/cbeebies to find even more fun games and videos for your preschooler in a safe child friendly environment.

CBeebies is dedicated to delighting and surprising its preschool audience and it remains the UK's most watched and most loved channel for the undersixes. Just under half of the target audience tune in every week (parents and carers with children aged 03 and 4to 6yearolds in digital homes) and our reach is over double that of our nearest competitor.

Visit us at http://www.bbc.co.uk/cbeebies'>http://www.bbc.co.uk/cbeebies