CHIN's

Leonard and Howard turn to Raj for help in dealing with a work emergency when they nearly come to blows after blaming each other for a potential disaster at the university. Amy throws an authentic Victorian Christmas party, while Sheldon seeks revenge on her for making him celebrate the holidays.

Travis and Andy take a backseat to Bobby's new tomboy friend, Riggs. Grayson sparks a religious debate when he sighs during Jules' family prayer. And the Cul-De-Sac Crew form a dodgeball league, but Andy's attention toward another girl leads to a brawl with a group of pre-teens.

A near miss from a crash has everyone in the car either on edge or adopting a new carpe diem mentality.

Phil tricks Luke into taking a dance class, but the jokes on him when the white lie indirectly lands him in the slammer. Meanwhile, Jay and Gloria are throwing birthday parties for both Manny and Joe and are concerned Manny might be going for girls out of his league, and Mitch and Cam get a rude awakening in the cutthroat world of booking a wedding venue.

Jay and the family plan to celebrate New Year's together at a hotel in Palm Springs, but the hotel doesn't meet their expectations; Alex and Haley are faced with challenges as they try to watch the kids back at home.

Kat tries to welcome a new business to the neighborhood, but the owner thinks he can get away with whatever he wants. Meanwhile, Randi tries to figure out a great gift for Carter.

Phil contemplates the worst, after missing a call from the doctor. Elsewhere, Javier, Manny's biological father, pays another visit to take his son to the horse races, Mitchell wins an environmental law award, creating a competition between Cam and himself on who has the better trophy, and Gloria tutors Haley in Spanish.