The Stewarts are having a busy week. Hannah Montana is about to perform for the Queen of England and the Queen's granddaughter; Jackson is in his school's volleyball championship; and Grandma (Mamaw Ruthie) is in town on a surprise visit. But when Mamaw only spends time with Jackson, Miley believes that Jackson is Mamaw's favorite.

Lilly decides to be a cheerleader with Miley in order to spend more time together, but they end up doing the opposite when Miley ends up being the team mascot. Meanwhile, in order to get some money from his father Robbie, Jackson willingly volunteers to unclog the sink for him. However, it's not as easy as he thinks.