John Travolta is a downtrodden single father raising his daughter under difficult circumstances in Chicago. The young girl comes upon and then nurses a wounded Doberman used for fighting, back to health. Duped by underworld types he was working as a courier for, father and daughter leave the dog and flee cross-country to Los Angeles with both canine and mobsters in pursuit.

　　天才科学家莉莲和迈克尔发明了一种能够记录和回放他人的实际经历的系统。进入这个系统意味着你能够知道他人在想什么和做什么，甚至重复这种经验。于是，有人开始利用它进行一些匪夷所思的活动，甚至连政府也利用它来获得军事上的秘密。然而事情还不仅于此。有人开始离奇地死去。迈克尔知道，要想遏止这种失控的局势，必须进入这种系统中改变进行的状态，这使他面临死亡的威胁。迈克尔能否经艰苦的努力粉碎阴谋者的企图呢……