Jake Cullen (Bill Kerr) lives with his grandson in the Australian outback when a massive razorback boar attacks him, destroying his house and killing his grandson. He is accused of murder and his dignity is destroyed. Two years later, a wildlife reporter, Beth Winters, journeys to the outback to document the hunting of Australian wildlife to be used as animal food, processed in a large factory, but she is attacked by two deranged locals, Benny and Dicko, who leave her to be killed by the beast. Her husband, Carl, goes in search of her, and aids Jake Cullen and his young associate, Sarah Cameron, in hunting for the razorback responsible for her death. As they search for the creature, Benny and Dicko worry that they may be associated with the murder of Beth Winters, so they attack Cullen and leave him to be killed by the boar. Vowing revenge for his wife and his friend, Carl finds Benny and lowers him into a mineshaft, presumably killing him, and finds Dicko in the factory. Before he can kill him, the razorback surges and mauls Dicko to death before chasing after Carl and Sarah, where they face off inside the processing factory. Carl lures the Boar (having speared it with a pole) into pursuing him down a conveyor belt, at the end of which is a large industrial fan. Not able to stop itself, the boar falls to its demise onto the blade/fins killing it, while Carl rescues Sarah.
黑帮老大艾迪?金策划了一起凶杀案，被偶然路过的年轻人西恩?琼斯（Nathan Phillips 饰）目击。为了在法庭上成功指控这个作恶多端的黑社会头子，警方派出资深联邦密探尼维利?费恩（Samuel L. Jackson 饰）负责保护西恩，并将其从夏威夷护送至洛杉矶法庭。为避免证人遇害，尼维利采取声东击西的策略，与西恩偷偷乘上一架普通的红眼航班。 然而这项绝密的计划被艾迪安排在警方的内奸获知，为了逃脱法律制裁，艾迪派出携带大量毒蛇的杀手登上飞机，一场离奇恐怖的血腥灭口案件就此展开……
