Betty switches gears with rival Charlie (guest star Jayma Mays) and tries to befriend her by throwing a baby shower, a party that no one will ever forget. Meanwhile, Hilda confronts Justin's PE teacher (guest star Eddie Cibrian as Coach Diaz) when she learns Justin is flunking gym; Daniel unravels after his break-up with Renee, and Christina finally learns who fathered the baby she's carrying for Wilhelmina.