The boisterous, arrogant professor Challenger, a reputed biologist and anthropologist, dares the London Zoological Society to mount an expedition to verify his spectacular claim, without physical proof, that his previous expedition to the Amazonian basin found live dinosaurs. Apart from him and his 'socialite' counterpart, professor Summerlee, it consists of experienced discoverer Lord Roxbury, the young reporter Ed Malone -who got publicly struck down with Challenger's umbrella at his arrival- and Jennifer Holmes, Malone's news agency's boss's daughter, essentially as conditions for putting up the money. In Brazil they are joined by Jennifer's brother David and local 'guide' Manuel Gomez. They soon discover the dinosaurs are real and dangerous, like giant spiders, but loose their helicopter and thus are desperate for a way down from the isolated plateau. They learn Roxbury knew about the fate of Burton White, an explorer whose diary they find, thus presume to be dead, in search of diamonds, and confirmation of the local tribe being the lethal guardians of the plateau's secrets, but also get surprising help...

　　格雷（菲利普·拉肖 Philippe Lacheau 飾）是“借口.com”公司的創始人，專門為需要“打掩護”的客戶制造各種各樣的借口和謊言。因為特殊的性質和高需求，公司的經營蒸蒸日上。一次偶然中，格雷邂逅了名為弗洛（艾羅娣·方坦 élodie Fontan 飾）的女子，弗洛的天真和單純深深的吸引著格雷，令后者墜入情網。格雷深信，她就是他命中注定要尋找的另一半。　　然而，令格雷頭疼的是，弗洛是一個對“撒謊”零容忍的的人，如果告訴了她自己的真實身份，她一定會憤怒的拂袖而去。無奈之下，格雷只得用謊言將自己重重包裝，在虛偽的假面下，格雷終于和弗洛走到了一起，可是當他到弗洛家做客時才發現，弗洛的父親竟然就是自己的客戶。

　　故事梗概　　本片為香港德寶電影公司的創業巨制之一，由杰出的攝影指導鐘志文升任導演，是一部熱鬧的浪漫冒險喜劇。內容描述一名地下軍火專家制造了一個小型炸彈企圖有所不軌，計劃被助手知悉，以致他殺人滅口，但卻被三名互不認識的平凡寂寞人目睹此事件。兩名瘋狂殺手奉命追殺三名目擊者，他們乃展開逃亡，過程中發揮同舟共濟的精神來化解危機。全片是典型以追殺為主戲的娛樂片，但不強調暴力動作，反而有不少驚險笑料。三個主角的個性也純真好玩，將都市寂寞人偶然碰到刺激遭遇時的反應生動地表現了出來。

　　巴倫為首的四個刺客,偽造成特勤局特工去到艾倫家里,艾倫是一個因為戰爭失去了丈夫的女人.她家的位置很適合偷襲總統,那些人騙過了當地的警察,只有托德頭腦依然清晰明了,他是個伊拉克的戰爭英雄,曾經和艾倫的丈夫一起服役,托德想辦法殺了他們的一個手下,但被抓了.他們必須在總統被刺殺之前找到一個辦法阻止刺客。。。。。