Maddie enlists Liv's help to build a giant Paulie Porcupine head for the Homecoming parade, but Joey and Parker accidentally destroy it while playing around with a stunt-prop from Liv's TV show, "Voltage."

Casting is underway for Liv's co-star in "Voltage" and some familiar faces show up for the auditions. Meanwhile, Karen arranges a "cleansing ceremony" for Maddie to help her let go of her feelings for Diggie.

Maddie and Willow get ready for a Ridgewood tradition where high school seniors scare middle schoolers, while Liv has a run-in with a photographer when she attends the Central Park Spooktacular with Joey.

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.

Grandma Janice, visits the Rooney family to present her granddaughter Liv with the "Porcupine of the Year Award." But, Maddie grows suspicious that it's Janice's twin, Great-Aunt Hillary who's actually visiting and pulling a switcher.

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.

Liv invites her "Voltage" director and crew over for the Rooney's traditional Christmas Eve dinner but is forced to enlist Artie's help to prepare the famed meal. Meanwhile, Maddie and Willow's gift exchange takes a surprising turn.

When Parker gets bumped up a few grades, he starts attending high school with Liv, Maddie and Joey. The older siblings now have to deal with him being good at everything.

A new coach arrives to take charge of the girls' basketball team and immediately butts heads with Maddie. Meanwhile, when Liv agrees to help Parker with his art project, her date with Holden takes an unexpected turn.

Joey and Parker hold strong beliefs that the Voltage set is haunted; Josh finds an excuse to spend time with Maddie.

When Liv needs to learn French for an upcoming interview, her mom decides to immerse her in the language and culture. Meanwhile, Maddie is thinking about dating again.

"Voltage" is taking up all of Liv's time, but when The Dream is asked to reunite for a fundraiser, Liv is determined to make it happen. Meanwhile, Maddie tries to figure out where to go to college.

Maddie and Josh go on their first date. Liv and Holden try to help Parker pass his show choir class.

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.

Diggie comes back to town to win Maddie after he saw the photo. Now Maddie needs to choose, Diggie or Josh? Who will she decide?

Liv is not too happy when Joey lands a part on her show, Voltage. Meanwhile, when Karen finds out that Andie's dad, Mr. Bustamante, disapproves of Dump Truck, they team up to change his mind.

Liv finds out that Voltage plans to leave Stevens Point for Los Angeles and must decide to move with the show or stay in Wisconsin with Maddie.

While trying to decide if they're going to stick together or go their separate ways, Liv and Maddie have a big disagreement.