An unexplainable event that has thrust the world into chaos brings two survivors together as a portion of the worlds population presumably infected by a strange outbreak, hunt them. These Infected Ones (IO’s) seem motivated by an obsession to rein chaos with a need for tasting blood. The two survivors; David (Ronan Quarmby) and a teenager named Cameron (Marco Torlage) form a bond as they try to find their lost loved ones, but the young man has a secret about the outbreak – all is not as it seems. A race from another world are orchestrating this attack on Earth as they hide in the skies, searching for the one out of seven billion people… searching for Cameron. Controlling the IO’s who are gripped in a bicameral state, time is running out as the ‘Visitors’ patience is waning and a greater threat faces our world if the boy is not found. David must help Cameron find his mom, Ellen (Barbara Harrison) and do what they can to stop the alien attack.
美國軍方在地球的某處現(xiàn)了一個(gè)奇怪的圓環(huán)，環(huán)的制造技術(shù)完全不同地球，而且通過測定圓的歷史非常久遠(yuǎn)甚至可追溯到人類出現(xiàn)之前，環(huán)上還刻有很多奇怪的號(hào)。這個(gè)圓環(huán)到底有什作用？考古學(xué)家丹尼?杰克遜（詹姆斯·斯派 James Spader 飾）博士對古埃及的象形文字及其歷史有深的研究，而且對金字的建造也有一套自己的論，可是他的觀點(diǎn)卻無被人所接受。為了能尋有力的證據(jù)，他開始對方發(fā)現(xiàn)的這個(gè)圓環(huán)進(jìn)行究，卻發(fā)現(xiàn)這個(gè)圓環(huán)卻一個(gè)高科技產(chǎn)物，通過定編碼的推動(dòng)能與另外個(gè)圓環(huán)聯(lián)通，形成一個(gè)洞，可以進(jìn)行超長距離耗時(shí)極短的空間旅行。了探知圓環(huán)聯(lián)通的另一到底有什么，丹尼爾與克·歐尼爾（庫爾特·塞爾 Kurt Russell 飾）上校為首的軍方小隊(duì)一起耆童越這際之門，進(jìn)入另外一個(gè)界探險(xiǎn)。在另一邊，他發(fā)現(xiàn)了很多令人無法相的事情，金字塔的建造謎、外星人是否到訪過球這些不解之謎都有了個(gè)新的解讀…?
