十年前，發生了震撼世界的重大事件“第一次愛之夏”。蘭頓失去了他的父親阿德洛克，現在已經在邊境城鎮貝爾福雷斯特參加了塔州聯盟軍校。被稱贊為英雄的已故父親。 什么都沒有的單調日常。蘭頓身邊的一切都很悶。 但在蘭頓面前，世界上最古老的LFO尼爾瓦修突然出現。 從駕駛艙出 現的是優萊卡。蘭頓和優萊卡的旅程將在哪里結束？

　　在一家珠寶貿易公司工作的肥丁（洪金寶）因是胖仔外加做人老實，常被老板娘周太（梁珊）和其弟（曹查理）騎在頭上，重活臟活全要攬下不說，工作稍微出點錯就會被罵得狗血淋頭。一日，他和在貨運部工作的同事阿B（鐘鎮濤）一起按老板吩咐送鉆石給中東酋長，之后將所收錢款送往銀行的途中遭劫，周太和其弟不問青紅誣告兩人與劫匪是同伙。　　越想越來氣的肥丁決定綁架周太以泄壓抑已久的怒火。在他準備行動之時，周家剛從美國歸來的女兒祖兒（王祖賢）正同后母周太發生激烈的爭吵，結果陰差陽錯祖兒被他綁架，之后又被阿B綁至家中。肥丁在阿B的逼迫下無奈向周家索要贖金，一時笑料百出。

　　In the year 2961, the time is after humanity and nature has recovered the land. A hunter named Cygnus is called to rise above his duty. He provides for Last Arc, a once nomadic band of survivors in need of food and water that is now growing scarce. The answer must be found before a group of outlandish Heretics descend upon them. Cygnus must voyage across the treacherous landscape to defend his people. Sent by Nova, the matriarch of the band, she acts based on her vision for Cygnus to find a seed of hope. The future of Last Arc is for him to discover, Cygnus ventures into a hostile landscape in search of an answer for his people. On this journey of encountering many traps and dangers, Cygnus discovers what has been hunting him is his identity.

 電影改編自1957年的百老匯音樂劇，講述了20世紀50年代紐約街頭的“噴氣機幫(Jet)”和 “鯊魚幫(Sharks)”之間的爭斗，以及分屬不同幫派的“苦命鴛鴦”托尼（安塞爾·埃爾格特 飾）和瑪麗亞（瑞秋·齊格勒 飾）的愛情。