Frankie Towers has always looked up to his older brother, Steve. And with good reason—Steve is a popular senior gets whatever he wants: girls, a soccer scholarship, and—lately—street cred. Frankie, on the other hand, spends his time shooting off fireworks with his best friend, Zach, working at his parents' restaurant, and obsessing about his longtime crush, Rebecca Sanchez. Although Frankie has some reservations, he doesn’t spend much time...

Persuaded by her teacher to seek Cortez's long-lost treasure during a school trip to Mexico, Annie Fleet, master scuba diver and history buff, finds that her plans to get Josh to notice her are not the only thing in danger as rival treasure-hunters try to do away with her.