Mike Locken is one of the principal members of a group of freelance spies. A significant portion of their work is for the C.I.A. and while on a case for them, one of his friends turns on him and shoots him in the elbow and knee. His assignment, to protect someone, goes down in flames. He is nearly crippled, but with braces is able to again become mobile. For revenge as much as anything else, Mike goes after his ex-friend.
魏佳欢生日这天，父亲魏成功陪她登上环海游艇，然而一场突如其来的海难打破了一切，整艘游艇侧翻，众人纷纷落水。魏成功自哭喊声中醒来，发现自己身处一荒岛，目睹魏佳欢被一巨蛇叼走，于是随众人深入丛林，踏上营救之路。在这片与世隔绝的丛林里，无数怪异的史前生物暗藏其中，营救女儿的遥遥之途布满杀机。另一边，魏佳欢等人在蛇穴中醒来，在失去规则的封闭环境中，幸存者的人性也承受着巨大考验…
由巴兹．库利克导演的该片是史蒂夫·麦奎因的最后遗作，虽然有点 “英雄老矣"的感慨，但他仍将剧中的瑞夫索尔森一角演绎得栩栩如生，入木三分。拍片过程中的高难和危险动作他必亲自上阵，所以给片中的追逐场面增添了几分真实感和刺激感。 该片取材于一个真实故事，讲述一名以追捕通缉犯领取奖金为生的捕头瑞夫索尔森，因长期忙于追捕工作而忽略了与女朋友的关系，致使女友出走。而此时，曾被他逮捕归案的梅森已出狱，他矢志报瑞夫索尔森一箭之仇。他在成功挟持瑞夫索尔森的女友后，两人终于再次对峙。
