In order to get out of a mother/son pageant, Parker intentionally gets up to mischief to get detention. Meanwhile, Pete plays nurse when Liv and Maddie get sick at the same time.

Diggie returns from Tundrabania, but he and Maddie have trouble reconnecting. Joey tries to solidify his relationship with Diggie through the Tundrabanian sport of Flugelball. Meanwhile, Parker attempts to teach his new unlikely friend Dump Truck how to ride a bike.

Ridgewood’s mascot has been vandalized, and the Rooney’s all become suspects. Meanwhile, Parker has the day off from school and gets into trouble at home with Reggie.

Before he leaves for Australia, Diggie needs to tell Maddie how he feels. Meanwhile, Parker, Reggie and Evan swear they will remain on the couch until the new season of Linda and Heather is released.

Liv tries to help her new co-star Josh feel more comfortable in Stevens Point while the rest of the school prepares for Cowbell Week, a Stevens Point tradition.

Liv gets upset when an interview focuses on her appearance instead of her acting. She enlists her friend Kristen Bell to help her change the conversation. Meanwhile, Maddie must hunt down a lost library book or else she won't get her final grades.

A reporter mistakes Maddie for Liv while she's on a date with Josh. Maddie doesn't want Diggie to hear the news from the press, so she asks Liv to play along.

Liv is not too happy when Joey lands a part on “Voltage.” Meanwhile, when Karen finds out that Andie's dad, Mr. Bustamante, disapproves of Dump Truck, they team up to change his mind. Josh has been really depressed since his split with Maddie and Liv realizes having Joey around cheers Josh up so gets him a small role in Voltage, but he takes it too far.

After exciting opportunities arise for each of the Rooney children, their summer plans are thrown into jeopardy.