As her album is preparing to be released, Ally realizes that with all the time she's spending with her music, she won't have time to work at the store anymore, and is forced to quit, which allows Lester to finally sell the store- but when the gang finds out that the new owner, Ms. Krum, wants to demolish Sonic Boom to turn it into a box store, they must find a way to stop Lester before it's too late. Meanwhile, Carrie requests Trish and Dez's help to find a new job when she gets fired from Shredder's. In the end, Carrie starts working at Sonic Boom taking Ally's place, while she is promoting her album.
