It's Thanksgiving in the Heffernan household and while Carrie cooks dinner for ten people, Doug lets a stranger into the house to use the phone. He is convinced the stranger is a nice guy but Carrie is not so trusting. Everyone at dinner feels sorry for the man, who's been left outside to wait for a ride, but when Carrie finally gives into the holiday spirit, it turns out her instincts may have been right.

After countless times of babysitting Deacon and Kelly's children, Doug and Carrie feel that Deacon and Kelly should return the favor and babysit Arthur every once in a while. Deacon and Kelly decide to take Arthur out to dinner so Doug and Carrie can be alone, but they ignore a warning about Arthur's reaction to spicy food.

Doug's lie to get Carrie to let him ride a rollercoaster at an amusement park blows up in his face. Meanwhile, Arthur lets Deacon shuttle him around in a wheelchair so they can jump to the front of the park's lines and Danny and Spence search for girls to pick up.

Doug and Deacon discover they have more in common with each other's wives than their own, so they start hanging out with each other's wives as well. When Kelly tires of Doug, he ruins Deacon and Carrie's good time. Meanwhile, Arthur dispenses romance advise, and the recipient finds success simply doing the opposite.