Mike and Dave are younger, adventurous, fun-loving brothers who are likely to get uncontrolled at household gatherings. When their sister Jeanie reveals her Hawaiian marriage ceremony plans, the remainder of the Stangles insist that the brothers deliver respectable dates. After inserting an advert on Craigslist, the siblings resolve to select Tatiana and Alice, two charming and seemingly regular girls. As soon as they arrive on the island, nevertheless, Mike and Dave understand that their companions are able to get wild and get together.