Maddie is named captain of the girls' basketball team just as the school principal announces he is cutting funding for the program. Determined to change his mind, Maddie voices her concern to the principal, only to realize her team has abandoned her. Frustrated with her lack of leadership skills, Maddie turns to Liv to help her earn the team's respect. Meanwhile, Parker and Joey are challenged trying to find a bevy of tarantulas that escaped after Parker brought them home from school unbeknownst to their mom.

When Joey is too nervous to talk to the new girl who he likes, Maddie decides the best place for him to practice talking to girls is at the high school dance–when everyone is in costume. Meanwhile, Parker booby-traps the house to protect one of the family’s most prized Halloween decorations from being stolen.

When Maddie fails her driving test and Liv needs help trying to get a part in a sci-fi play, they decide to switch so Liv takes Maddie's driving test and Maddie auditions for Liv. But when Maddie accidentally yells, "Bam! What!?" Joey and Parker realize it's her and not really Liv, and Liv wrecks the car during Maddie's driving test.

Liv is told that the coveted role of Tristan in “Space Werewolves” has been narrowed down to herself and two other famous actors.

Maddie anxiously waits for a letter from the Junior Olympics to arrive to find out if she is invited to try out for the basketball team.

To raise her grade in Mr. Clodfelter's home economics class, Maddie must win the Plate Off and defeat the class master chef, Artie. Meanwhile, Joey convinces Pete to sponsor his made-up clubs at school.

Maddie and Diggie try to "out-fun" each other at a local music festival as Liv tries to help Andie get over her breakup.

While Joey and Maddie try to catch Diggie before he departs for Australia, Liv covers for Maddie at home. But when Diggie shows up at the Rooney house, chaos ensues, reminding Parker of his favorite soap opera drama. Meanwhile, Liv gets a call from her manager telling her she landed a coveted role in a new TV show "Voltage."

Liv, Maddie and the rest of the Rooney family are excited to start their new life in California. As the school year begins, the Rooney's cousin, Ruby, returns home from a summer trip. Excited to have "sort of" siblings, Ruby can't wait to finally be a sister but finds herself in the middle of a sister-fight between Liv and Maddie. Meanwhile, Joey and Parker attend their new Science and technology school and their experience is not what they expected.

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