After the passing of her mom, Julie has lost her passion for music and is on the verge of being kicked out of her performing arts high school. That is, until she makes the ultimate comeback with her new band, Julie and the Phantoms. There’s only one catch: all of her bandmates are ghosts.

Back in the 1990s, Luke, Reggie, and Alex were on the cusp of rock stardom with their band Sunset Curve before an unfortunate encounter with Los Angeles street food brought their rock-band dreams—and lives—to an end. Now, with Julie as their lead singer, the guys have a second chance to make it big and to help Julie discover the real power of music.