In the harsh, yet beautiful Australian outback lives a beast, an animal of staggering size, with a ruthless, driving need for blood and destruction. It cares for none, defends its territory with brutal force, and kills with a raw, animalistic savagery unlike any have seen before.

　　我们上次见到拉夫特一家已经六年了。戴夫和朱莉带着最小的女儿鲁比在乡下开创了新的生活，而年长的孩子们面临着新的挑战，爷爷泰德也在努力寻找自己的位置。由于戴夫享受着新获得的自由，朱莉必须协调好自己对家庭的责任。