Blonds and brunettes switch hair color to test Sam's natural selection theory that blonds always get preferential treatment. Bowling decides it. Losers get mohawks. Sugar falls for an Asian exchange student. Lily fails to save a lobster.

Sam runs away from home to track down Brooke's biological mother hoping that the woman will come back and help put an end to the wedding. Mary Cherry sets out to get back at her mother, while Josh, Harrison, Sugar and Emory try to get into a strip club.