It's Lily's birthday, and she informs her parents hat she'd like to have an 80's themed party to celebrate. Jep and Jess are excited to help her plan it, although they're both a little sad about how fast their oldest daughter is growing up. Jep and his friends decide to dress up as 80's breakdancers for the party and take a hip-hop dance class so they can learn some authentic moves. Meanwhile, Jess and her friends teach the girls how to make acid washed jeans and apply the perfect 1980's hair and makeup for the party.