Every Christmas happily unmarried Brad and Kate escape divorced parents and exasperating relatives by getting on a plane. This year a fog rolls in that even Rudolph's nose couldn't illuminate, the airport shuts down and the couple is forced to celebrate four family Christmases in one hectic, hilarious day. Vince Vaughn and Reese Witherspoon lead an all-star cast in a comedy brimming with good cheer and great laughs: Brad learns how "not" to install a satellite dish, Kate battles an army of naughty-list kids in an inflatable Christmas castle, and the two fill in for no-shows Mary and Joseph in a wacky holiday pageant. Can Brad and Kate's relationship survive Four Christmases?