When the guys volunteer to chaperone the high school prom, Quagmire hits it off with Courtney only to discover that she is his daughter. To his and the gang's surprise, Quagmire makes a serious effort to embrace parenting Courtney, joining Peter and Meg on an ill-fated father-daughter camping trip.

In search of Stewie's cherished big wheel tricycle, that Peter threw out, Stewie and Brian embark on an adventure to "Garbage Island," a giant floating mass of trash out in the sea. Meanwhile, Lois tries to help Quagmire elevate his dating game, as he courts a middle-aged woman.