Heat Four time and it’s the greatest battle in the history of task related activities…involving children between the ages of 9 and 11, on television, in the UK, this week. Mike is in his element because he gets to build some sandcastles, Rose judges what would be of most use in a zombie apocalypse and our fab five, Billie, Emilie, Jamie, Kaif and Kyra become acquainted with Hollywood royalty.