Rosalina comes back after her music cruise, but Michel (the French guy Rosalina kissed on the cruise) also comes back, criticizes Nat's music, and kisses Rosalina which Nat sees. This causes a heated fight between Nat and Rosalina in which they break up and Rosalina quits the band.
After making it to the top of the charts, members of the Silver Boulders, a popular tween rock band, find themselves undermined by internal squabbling as the bandmates seek different creative directions.
The Naked Brothers Band is making a major motion picture! But it's far from quiet on the set. Nat can't understand why Rosalina seems to be sabotaging herself with terrible acting in order to get written out of the film. Meanwhile, Alex freaks out when he discovers that his part in the movie calls for him to kiss a girl!
