1x5 - Big Time Rush

The guys chase the same girl named Jo, causing the band to fight. Meanwhile, James gets an allergic reaction to a body spray and Kelly (Tanya Chisholm) attempts to make him get an allergy shot, Gustavo gets a new personal helper named Freight Train, Katie has to write a report on her biggest hero and writes about Gustavo so she does not have to read anything, and Griffin wants a slow love song for the next song, but Gustavo cannot seem to figure out how to make the song work.