A mother and son hop on their bike for a ride through the neighborhood, joining friends and neighbors along the way.

When twelve-year-old Ash McCarthy wakes up after his father's funeral, he finds that he has been kidnapped to an island off the coast of Costa Rica, caught in the middle of a secret and deadly project named Kronos in which his mother is somehow involved, and he must find a way to save them both--and the only person he is sure he can trust is a Spanish girl his own age named Isabel.