A love story played out against a backdrop of political and religious upheaval. At the end of the Second World War, 38 year-old career soldier Gian Singh resigns his commission with the British Indian Army and returns to his childhood village, near the border with Pakistan. Haunted by the memories of war, he seeks a quiet life of farming, solitude and prayer. His peace is shattered in August 1947, however, when India is granted independence. A new border is drawn between Hindu-dominated India and Muslim-dominated Pakistan, and the region is torn apart by massacres fueled by ancient animosities. In the midst of one such massacre, Gian finds Naseem, a 17-year-old Muslim girl, and takes her under his protection. They gradually find themselves drawn to each other but, as their remarkable story plays out, the obstacles to their happiness prove all but insurmountable.
故事设定在“猿流感”病毒蔓延全球的背景下，人类几近毁灭，而进化为高级智慧生物的猿类一跃成为食物链顶端的王者。时移世异，暴虐的猿类首领赛撒（凯文·杜兰 Kevin Durand 饰）在一片废墟中建立起猿族历史上的第一个帝国——“猩球”崛起，这是世界新秩序诞生的黎明时分。神秘的人类女孩诺娃（弗蕾娅·艾伦 Freya Allan 饰）的出现，引起了赛撒的警觉。她似乎掌握着一个巨大的秘密，不仅关乎人类的存亡，甚至可能再度颠覆整个“猩球”。被迫逃亡的诺娃在躲避赛撒军队的过程中，与青年猿类诺亚（欧文·泰格 Owen
马丁（Michael J. Fox 饰）才回到现实世界与女友团聚，布朗博士（Christopher Lloyd 饰）就心急火燎地把他们带到了30年后的未来世界，原来这一次是马丁未来的两个孩子因参与抢劫锒铛入狱，博士要携马丁一起阻止悲剧发生。 周旋一番后，两个孩子被成功挽救，但三人回到现实世界后，却发现周遭发生了天翻地覆的变化，世界被贝夫（Thomas F. Wilson饰）所控制，马丁的父亲乔治惨死，母亲洛莲（Lea Thompson 饰）竟然成了贝夫的妻子！ 这一切都是因为时光机器的秘密不慎被未来的
