Sean is a police officer in charge of cracking human trafficking ring. He is a fast runner, a good fighter and a sharp shooter. If there were anything that his supervisor is unhappy with him, it would be he is too on the ball which often expose him to danger while trying to arrest criminals. Most of his team members thought he is so on the ball because he was eyeing for promotion, but he has his reason….

Lynn is a tour leader specializing in Bangkok tours. The series kick start with Lynn’s tour member Anne, losing her 9 years old son in a bazaar. Lynn mistaken Sean as the kidnapper and catches him. She takes him to a Thai police officer Aut. After Sean proves that he is actually a police officer from Singapore and together with Aut, they solved the case and found the missing boy.

Lynn loses her job as she disobeyed her boss’s instruction to return to Singapore. She then joins a non-profit organization that helps gather information of any crime that the police was unable to solve over the years.

When Lynn has new information, she would look for Sean to help solve the case. Sean did not believe in non-official intelligence but change his view after solving a case that Lynn provided the lead. They went on to solve several other cases and their relationship flourish.