Terry Griffith is an aspiring teenage journalist living in the Arizona suburbs who feels that teachers don’t take her school newspaper articles seriously because of her good looks. After failing to get her dream job as a newspaper intern, she comes to the conclusion that it is because she is a girl.
With her parents out of town, Terry decides to remedy the situation. Enrolling at a rival high school, she enlists the help of her sex-obsessed loudmouth little brother, Buddy and her best friend Denise to disguise herself as a boy. Her brother and friend also help to keep tabs on her throughout the experiment. Along the way she meets Rick, a gold-hearted nerd who becomes her pet project.
After helping him through an image makeover and encouraging him to start talking to girls (which results in him taking the most popular girl in school out to the prom), Terry starts to fall for him.
After many episodes in and out of school, including fending off a group of bullies led by bodybuilder Greg Tolan, dealing with her real college boyfriend Kevin and being set up on a blind date with a potential new “girlfriend” named Sandy, Terry manages to be accepted as ‘one of the guys’.
At the senior prom, a jealous Greg picks a fight with Rick, who ultimately trounces the bully in front of the entire class. But when Terry’s boyfriend shows up unexpectedly and finds out what’s been going on, Terry has no choice but to reveal herself to Rick. Although she admits to loving him, Rick angrily rejects her, prompting a desperate Terry to kiss him in front of everyone. Seemingly unfazed, Rick simply walks away. —Wikipedia