\"Mike and Dave Need Wedding Dates\" is the movie about Dave and Mike. They are brothers who since the childhood were \"joined at the hip\" and always did all together. They like to spend cheerfully time, having a good time at various noisy parties. However, they have one little problem, they are all the time spoil family celebrations.
Their family was tired of it and demanded a good behavior at a wedding of their sister where they shall come with their girlfriends. Parents are sure that women are capable to hold mad brothers from fixed tricks. Dave and Mike go on TV where they declare the fact that two well-mannered girls, are necessary for them to a campaign on a wedding celebration of the sister. And they find suitable companions but only girls are at all not those who they think they are.