In the distant future, Jack Deadman and his military team are the final hope to save our dying earth from its hellish apocalypse. The mission is to enter the underground world of Labyrinthia and retrieve the water stolen by the savage inhabitants below... 10 years later, the mission has failed, and Jack Deadman exists in isolation, trapped and buried deep within Labyrinthia. A lone wolf anti-hero, changed by failure and guilt. But when the opportunity to escape arises once again, Jack will begin a quest for vengeance and redemption in one last attempt to escape from Labyrinthia.
八公（Forest 饰）是一条谜一样的犬，因为没有人知道它从哪里来。教授帕克（理查·基尔 Richard Gere 饰）在小镇的火车站拣到一只走失的小狗，冥冥中似乎注定小狗和帕克教授有着某种缘分，帕克一抱起这只小狗就再也放不下来，最终，帕克对小狗八公的疼爱感化了起初极力反对养狗的妻子卡特（琼·艾伦 Joan Allen 饰）。八公在帕克的呵护下慢慢长大，帕克上班时八公会一直把他送到车站，下班时八公也会早早便爬在车站等候，八公的忠诚让小镇的人家对它更加疼爱。有一天，八公在帕克要上班时表现异常，居然玩起了以往
