The girls baseball team has been cut at Glades high school and their star player, Elizabeth Clarke, demands that they all try out for the boys team. When they tell her no and laugh in her face, she breaks up with her boyfriend and walks away.
Brandon Clarke, Lizzy's twin brother, has a concert in London for two weeks. He was also kicked out of Glades and is enrolled into Devon Aire High School.
Brandon asks Lizzy to call the school and pretend to be their mom and say he is sick. The two are identical twins and if you take away the hair and body parts, they will look almost exactly alike. Lizzy decides to dress up as Brandon, get onto the boys baseball team at his school and beat Glades.
What will happen when she does this? Will she make the team? Will she be good? Will someone find out her secret? Will she make friends? Or will they be more? For Lizzy, there's only one way to find out, gender swap.