
Thomas Magnum is a decorated former Navy SEAL who, upon returning home from Afghanistan, becomes a private investigator in Hawaii. A charming troublemaker and a die-hard Detroit Tigers fan, Magnum solves tough cases with his ex-MI6 partner Juliet Higgins, and when he needs backup, he calls on his trusted buddies and fellow POW survivors, T.C. and Rick, to bring the heat. With keys to a Ferrari in one hand, aviator sunglasses in the other and a few Mai Tais on the way, Thomas Magnum is always on the case.

The mother of a suspected bomber hires Magnum and Higgins to locate her teen son and turn him in to the authorities; Kumu and Rick help T.C. navigate his guilty conscience when he runs into a past flame.

Higgins is in a complicated situation when 12-year-old Ella asks for help cracking a triple homicide that involves her mother; Magnum bonds with a terminally ill veteran while volunteering with the No Veteran Dies Alone Program.

Magnum goes to extreme lengths to uncover the truth about a crime that may have involved his dear deceased friend.

A man wakes up on a beach covered in blood, so he hires Magnum and Higgins to investigate a crime he doesn't remember; T.C. is taken aback when Cade's biological grandmother makes a surprise visit; Rick's feelings for Suzy grow stronger.