Barry is a talented mechanic and family man whose life is torn apart on the eve of a zombie apocalypse. His sister, Brooke, is kidnapped by a sinister team of gas-mask wearing soldiers & experimented on by a psychotic doctor. While Brooke plans her escape Barry goes out on the road to find her & teams up with Benny, a fellow survivor - together they must arm themselves and prepare to battle their way through hordes of flesh-eating monsters in a harsh Australian bushland.
Megan's world is turned upside down when she hears her calm life with her little brother and single mum is about to change. She hears she's soon to have a stepfather and a stepsister. Megan thinks they're a bit weird and is determined to stop the wedding. She discovers they're actually even stranger than she thought - they're from another planet.