Why is Nothing Ever Simple?

It's Christmas at St Mary's and time for the traditional illicit jump. Except this one is perfectly legal. It's Major Guthrie's last jump. To the Battle of Bannockburn, no less. An important moment in History for two nations - one that warrants everyone's full attention.

But Max soon finds herself grappling with a near-lethal game of pooh sticks, another avian incursion and two turbulent teenagers intent on piloting their own illegal jump. And that's all before they even get near fourteenth-century Scotland.

For this is St Mary's and nothing is ever simple...