Writing a book would be very ambitious for Guy who generally doesn't do much of anything. He is interested in video games and girls, but that won't get him very far in life. His friend, Anoop, talks him into joining the after school forensics club. It doesn't hurt that Raquel is in the club.
How is this all tied together? Well, someone breaks into Guy's house and steals coins from the sunken treasure. He and his friends decide to put their newly acquired forensics knowledge to the test since the police seem uninterested in the case. Guy knows whoever stole the coins must be connected to his dad.
The 'mystery' is not the main part of the story. It is ultimately about a young man discovering more about his father and coming to terms with his death.