When Daniel Greenburg accidentally buys Girl Power deodorant for Zack while shopping, and Zack uses it, he becomes a girl! Now, Vernon is flirting with Zack, while Gwen starts plucking his eyebrows. And even worse for Zack, Cam is going on a date with Sarah. Zack decides to find out how to change back into a boy after he gets some secret information from Gwen and Sarah.