When Fiona arrives in sunny New Mexico from her home in England, it feels as if she's entered a whole new world. But instead of enjoying her stay as an exchange student, she's miserable and homesick. Most of all, she misses her boyfriend, Simon. Taco West, the only boy on the ranch where Fiona is staying, is nothing like Simon. He teases her and treats her like a pesty younger sister.

But as time goes by, Fiona finds Taco has a gentle, tender side. And she thinks about Simon less and less. Should Fiona stay faithful to the boy she's supposed to love - or give her heart to the boy she thought she hated?