As the graduates of `Lost & Found' depart for a worldwide tour, the musicians prepare a goodbye party. Leia hopes to write and perform a song for her crush, but he is preoccupied with how to help his best friend express his feelings for Michelle.

When Mr T selects Rachel's song over Leia's for auditions, an upset Leia worries that her songwriting ability is slipping. Meanwhile, Eva helps Jude shoot a unique music video for his new song.

Preparations are in full swing for auditions, and Leia and Rachel are in charge of contacting the potential new members of Lost & Found. Audition hopeful Isaac wants to join the studio to escape his rough neighbourhood, while Maggie hopes to leave her small town behind and meet some kindred spirits. Meanwhile, the band works together with Jude and producer Mr T to record a buzz-building demo.

It's day one of auditions and hopeful musicians flock to Lost & Found to show what they can do. Annabelle and Maggie bond, while Nate has to calm his embarrassing mother and Leia faces off with her old nemesis, Britney.

As day two of auditions begins, John vows to get Annabelle a second chance. Mary has a bold strategy for her audition, but her risk doesn't pay off, and a nervous Clara gets reassurance from an unexpected source.

The new members of Lost & Found are revealed as the veterans take the newbies under their wings to ease them into life at the studio. Jude gives Clara the insider's guide, while Annabelle is stuck with a lovesick Leia, who is too distracted by Luke and Maggie's new bond to be a proper mentor. An eager-to-impress Mary pairs with Eva and pushes her out of her comfort zone.