Ep 18. Shallow Grave, Deep Water

Magnum P.I. season 4 episode 18, titled "Shallow Grave, Deep Water," follows private investigator Thomas Magnum as he is hired by a wealthy woman to investigate the death of her son. The son, who was a scuba diving instructor, died while diving with his girlfriend, who is now missing.

Magnum's investigation leads him to a group of competitive spear fishermen, who are known to be aggressive and have a history of rivalry. As he delves deeper into the case, Magnum uncovers a web of secrets and lies, including a connection to a missing treasure.

Meanwhile, Magnum's friend and fellow private investigator, Rick, decides to take a break from working and goes on a solo adventure to hunt down a rare fish. However, his trip takes a dangerous turn when he finds himself stranded at sea with no communication or rescue in sight.

As Magnum balances his investigation and his concern for his friend, he must navigate the treacherous waters of Hawaii and outsmart a dangerous group of suspects to solve the case and bring justice to the victim.

"Shallow Grave, Deep Water" is a thrilling episode full of suspense, action, and unexpected twists and turns. It showcases the beautiful scenery of Hawaii, as well as the strong bond between Magnum and his friends. It also highlights the dangers of the ocean and the importance of being prepared and vigilant while engaging in water activities.