 The Chases  car has had it, but father Bob has a great idea: they can earn a new mono-volume just like they got their old  5-mobile , by making another quintuplet-commercial, the same car company is interested. Alas the reason they stopped doing commercials hasn t changed either: they must do an audition against the perfect, blond Helberg quintuplets, mercilessly managed by greedy, arrogant father Francis who never looses. Parker refuses to do a car commercial because of his Greenpeace-minded girlfriend, so Paige s brainless boyfriend Tyler pretends to be Parker. The Helbergs get the job because the Chases fight hopelessly, but when bossy Francis  fires  his son Chase for becoming Penny s boyfriend, even five nincompoops are better then four stars to play quintuplets...