Two years after aliens land on Earth, survivors from Sydney, Australia, fight in a desperate war as the number of casualties continue to grow.

A small group of town residents have to band together after a devastating ground invasion. As they struggle to survive, they realize they must stay one step ahead of their attackers, and work together for a chance to strike back.

Charity, an ambitious pragmatic reporter, learns the true meaning of Christmas when she investigates Erik Gallagher, a millionaire who insists that all the gifts that arrive on Christmas every year are from none-other than Santa hims