As the cadets prepare for the best Christmas ever on Kangaroo Beach, a homesick Ghërkinn realises he's missing out on the beloved snowy Christmases he is used to at home.

Hot chocolates, chestnuts roasting by the fire and snow angels are replaced with blue skies, sun, and sand. The cadets rally together to show Ghërkinn just how fun an Australian chrissy can be.

But, an attempt by Ghërkinn to swim back home turns into a rescue mission and the cadets must think quickly to help bring him back to safety.