Luis Fernando and Luisa Teresa are twins, and they finally have the chance to stand on their own. Fernando is staying local in Mexicali, Mexico, and Teresa is planning to cross the border every day so she can go to a private school in Calexico, California.

Suddenly on his own, Fernando realizes that without his twin around. Desperate to not be alone in middle school, he finds himself making friends with the first kid who's willing to give him a chance . . . only this new friend says and does a lot of things that Fernando isn't too sure about.

Teresa is ready to thrive and stand on her own two feet, but she soon finds herself failing under the pressure of crossing the US/Mexico border every day. She no longer has to worry about being compared to her brother -- but now she doesn't have his support when she could really use it.

At home, both twins have a chance to reconnect. But instead, they find themselves pushing each other away. After all, being on their own is what they always wanted . . . right?

This is a truly contemporary story about siblings, middle school, and peer pressure. Twin Cities explores the importance of family, and also the struggles that come with trying to live up to standards that are impossible to meet.