Maybe you can't teach an old dog new tricks, but you can certainly have fun trying. Dan and Charlie, two best friends on the verge of a major business deal, suddenly find themselves playing "my two dads" when Dan's ex-wife shows up with a big surprise. Apparently Dan is the father of seven-year-old twins he didn't know existed. Now the two bachelors are stuck with the kids (and a dog) for the weekend, and their efforts to keep them entertained are by turns disastrous and strangely inspiring.