The WORST seasons of Magnum P.I.

Every season of Magnum P.I. ever, ranked from worst to best by thousands of votes from fans of the show. The worst seasons of Magnum P.I.!

Thomas Magnum, a decorated former Navy SEAL who, upon returning home from Afghanistan, repurposes his military skills to become a private investigator in Hawaii taking jobs no one else will with the help of fellow vets T.C. Calvin and Rick Wright, and the former MI:6 agent Higgins.

Last Updated: 4/17/2026Network: NBCStatus: Ended
Season 4
star
7.03
2043 votes

#1 - Season 4

First Aired 10/2/2021

Season 5
star
7.24
33 votes

#2 - Season 5

First Aired 2/20/2023

Season 1
star
7.60
102 votes

#3 - Season 1

First Aired 9/25/2018

Season 2
star
7.70
79 votes

#4 - Season 2

First Aired 9/28/2019

Season 3
star
7.79
67 votes

#5 - Season 3

First Aired 12/5/2020