Olivia's life is upended when her family purchases a beach house to spend each summer in a small surfing community on the California coast. Reluctantly, she meets kids from the neighborhood. By the end of summer, Olivia has fallen in love with Derek, who was also a summer resident.
The couple agrees to return to Castle Beach each Father's Day to prove their love can withstand the test of time. Challenged by violence, distance, and misunderstandings, they strive to make their summer romance last against the forces that threaten to break them apart as they experience a love that is worth fighting for.