In the Headquarters of the T.I.A. (Terminal Intelligence Agency), someone has stolen Professor Bacterio's most dangerous invention, the D.O.T. (Demoralizer of Troops), an artifact that ends up in the hands of a very short, wacky dictator who is ready to use it for criminal purposes. The T.I.A Chief, though, is firm in his resolve: if he wants to get the D.O.T. back, he must NOT count on his agents Mortadelo & Filemon. But when the crime fighting duo discover that the T.I.A. has engaged a cocky and slimy detective from outside the agency, they decide to act at their own risk, even if that risk involves all of Humanity.

爱斯伯特斯是小镇上成功的商人。假期到了，他们一家老小收拾好行李，告别了邻居，准备开车到西班牙度假。当车开到郊外时，爱斯伯特斯突然停车，告诉家人说，他们哪里也去不了了。因为公司的账户已被冻结，他正面临着破产的危机。为了保住爱斯伯特斯的声誉，全家人只能偷偷地溜回家，熬过这个月。于是，一大家子就躲在家里，偷偷摸摸地过了一个荒诞又搞笑的假期。