A decorated former Navy SEAL returns home from Afghanistan and repurposes his military skills to become a private investigator in Hawaii.

Magnum helps a struggling fisherman and fellow veteran when his 300-pound tuna worth $350,000 is stolen, only to learn that the thief needs Magnum's help as well.

Magnum takes a case from fellow private investigator Luther Gillis to find the true identity of a man's comatose fiancée when he learns that she's had extensive facial surgery.

An art connoisseur and close friend of Higgins who recently hired Magnum to test his security is murdered, and Thomas is arrested as the main suspect.

TC asks Magnum to take on a case to help acquit the father of one of TC's young football players who is accused of murder.

An ageing tycoon asks Magnum to find his lost love, who he says just recently contacted him -- but she died 30 years earlier; Rick and TC meet a fellow vet who is having a hard time adjusting to civilian life.