Magnum returns home after 13 years to attend his beloved grandfather's funeral.

Magnum helps an ex-call girl find her missing sister who is involved with powerful political figures.

An attempt is made on the lives of Robin's guests and Magnum is upset that one guest wants mainland investigator Jessica Fletcher to handle the case.

The crossover continues on Murder, She Wrote S03E08 Magnum on Ice (II).

Magnum gains a lovely assistant while working on a case for Higgins which exposes the inner workings of a dangerous mob figure.

Magnum investigates the death of a close friend, a lieutenant who may have been involved in illicit activities.

Higgins is stalked by a mysterious killer whose game plan is to obtain Robin Masters' newest manuscript, and Luther Gillis, the St. Louis private eye, helps to muddy mysterious waters with his unwanted assistance.