It's July and the TIER gang are going on holibobs! But don't fear, we shan't leave you high and dry - you're going to get a four part mini-series!

This week, bask briefly in the sun before learning how our four presenters get locked into a beach hut. Jon leads the puzzling by putting us in a potentially explosive predicament.

 

Who can see the bigger picture?

Are any of us left flagging...?

 

Answers and yet more questions lie in this weeks episode of TIER!