Overachiever Luz “Lulu” Zavala has straight As, perfect attendance, and a solid ten-year plan. First up: nail her interview for a dream internship at Stanford, the last stop on her school’s cross-country college road trip. The only flaw in her plan is Clara, her oldest sister, who went off to college and sparked a massive fight with their overprotective Peruvian mom, who is now convinced that out-of-state-college will destroy their family. If Lulu can’t fix whatever went wrong between them, the whole trip—and her future—will be a waste.

Middle sister Milagro wants nothing to do with college or a nerdy class field trip. Then a spot opens up on the trip just as her own spring break plans (Operation Don’t Die a Virgin) are thwarted, and she hops on the bus with her glittery lipsticks, more concerned about getting back at her ex than she is about schools or any family drama. But the trip opens her eyes about possibilities she’d never imagined for herself. Maybe she is more than the boy-crazy girl everyone seems to think she is.

On a journey from Baltimore all the way to San Francisco, Lulu and Milagro will become begrudging partners as they unpack weighty family expectations, uncover Clara’s secrets, and maybe even discover the true meaning of sisterhood.