Big Time Girl Group

Die Jungs von Big Time Rush haben ein Problem, denn plötzlich taucht Konkurrenz bei Rocque Records auf: Kat's Crew, eine Girlgroup, die nichts unversucht lässt, um auch unter Vertrag genommen zu werden. Die Jungs befürchten, dass sie in Abseits gedrängt werden könnten und verbünden sich mit einer von Gustavos alten Boybands aus den 90ern, um die Mädels zu vergraulen.

When Gustavo begins working with a female pop group called the Kat's Crew, the boys of Big Time Rush get some jealousy when their new single "I Know You Know" is taken by the Kat's Crew. They start a war between each side (Big Time Rush & Kat's Crew), believing that Gustavo will forget about them and cancel Big Time Rush. The guys turn to "Boys in the Attic", Gustavo's first boy band, for some advice: they were also destroyed by a female group named "Angel Angels". In the end Gustavo decides to keep the guys and stop working with the Kat's Crew, but before the girls leave Rocque Records forever, Big Time Rush makes a song and a video with them. Meanwhile, Katie and Mrs. Knight and are trying to find good friends

Cuando Gustavo comienza a trabajar con un grupo de pop femenino llamado Kat's Crew, los chicos de Big Time Rush se ponen celosos cuando Kat's Crew toma su nuevo sencillo "I Know You Know". Comienzan una guerra entre cada bando (Big Time Rush y Kat's Crew), creyendo que Gustavo se olvidará de ellos y cancelará Big Time Rush.