Magnum and Higgins help a mixed martial arts fighter who is being pressured by a gang to throw an illegal fight; Kumu is arrested for stealing an artifact from a collector that should be returned to its original resting place.
When Georgie fails to make the basketball team, Harley helps her cultivate a new passion instead.
While Grandma Jenny, Emery and Evan look to the future, Louis and Jessica take a trip down memory lane; Eddie, on the other hand, is stuck trying to navigate the present after his first college visit doesn't go according to plan.
When Higgins is abducted, Magnum discovers it's retaliation related to one of his first cases; Magnum, Rick and TC must break out an ex-client from prison in order to save her.
When an Army Ranger goes missing after returning from deployment, Magnum learns of the traumatic news he received upon arriving home and must find him before survivor's guilt consumes him.