New parents Mac and Kelly are living the American Dream, complete with a baby girl and a new home in the suburbs. Still, they want to believe that they are still cool, so when they discover that their new next-door neighbors are dozens of fraternity brothers-led by charismatic Teddy-they try to play along. But when the parties grow increasingly more epic, both sides begin to fend for their turf. The sabotage escalates into extreme one-upmanship, beginning...

Mac and Kelly Radner enter into a one-upmanship war their neighbors, the Delta Psi Beta fraternity led by president Teddy Sanders.

Now that Mac and Kelly Radner have a second baby on the way, they are ready to make the final move into adulthood, the suburbs. Just as they thought they'd reclaimed the neighborhood and were safe to sell, they learn that the new occupants next door are a sorority even more out of control than Teddy and his brothers. Now forced to turn to the one ex-neighbor with the skills to bring down the new Greeks next door, they bring in charismatic Teddy as...