A year after her mom passed away, Julie plays one of her old CDs. Suddenly, three ghosts appear — the guys from the '90s band Sunset Curve!

When Julie starts singing again, the boys and her best friend Flynn encourage her to fight for a spot in the school music program.

Julie's performance makes a big splash, and the guys try to convince her to join Sunset Curve — but she'll have to come clean to Flynn first.

Flynn books Julie and the Phantoms to play at the school dance, Alex hangs out with his new crush, and the boys decide to teach an old friend a lesson.