Imagine 4 days of intensive spy training, it all comes down to this – track down the double agent!

Team working skills, code-breaking, survival and resilience. A spy plane has parachuted in equipment, now you just have to solve the puzzles. Morse code, ultraviolet messages, cryptic cyphers, codes hidden in reflections, ‘two grey geese fly south for winter’ and finding the secret code to open the safe.

Which teams will succeed and who is the double agent?