The record company CEO thinks adding a fifth band member will broaden Big Time Rush's appeal and sticks the guys with a self-proclaimed "bad boy" named Wayne Wayne, who tries to inject dissension and tension within the group. Ultimately, Gustavo and the guys secretly band together to get him booted out of the band, in a "bad boy-off". Meanwhile, Mrs. Knight gets persuaded that there's an axe maniac on the loose, and forces Katie to play with a girl named Molly, who is later found to be a con actress that's 20 years old and tries to pass herself off as an 11-year-old girl driving in a high speed chase with cops, using Mrs. Knight's rental car, trying to get a job in Hollywood.

When Gustavo goes away for a few days to check out a new boyband called "The Windmills", the guys "mansion sit" for him much to Gustavo's dismay. After much discussion with Kelly, Gustavo allows the boys to "mansion sit" but they must follow his rules or else they are fired. Once at the mansion the guys think it will be an easy task, but what seems like a task they can handle soon turns into a "big time disaster" as things don't go according to plan. Meanwhile with Kendall and the guys away, Mrs Knight starts to fell less needed by her children, so Katie decides to help her mother out by pretending to be sick.

In the eye of their first album release, Griffin, the head of the record label, cancels the album, tour, and concert, forcing them to return to Minnesota, which threatens to break up their life-long friendships. James gets mad and he's got 3 record deal, and joins Hawk, Gustavo's Arch-Rival. Gustavo has to pay back to Griffin $2,000,000 to get back Big Time Rush, and to get them to come back and to finally perform concert. They come back to the LA, and they cannot stay in the Palmwoods again, so they all start living in the Rocque Records "RocqueWoods". James does not want to come back to Big Time Rush so they open an audition for the new James, but they can find anyone and James comes back and they prepare for the concert