The BEST seasons of Mission: Impossible

Every season of Mission: Impossible ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Mission: Impossible!

Elite special agents undertook top-secret assignments in crackerjack episodes, which kicked off with the team leader receiving instructions via a tape-recorded message that self-destructed in five seconds. What followed were usually breakneck spyjinks set to a pulsating Lalo Schifrin score. Martin Landau turned down the Spock role in 'Star Trek' to play IMFer Rollin Hand. When Landau left the series in 1969, his replacement was the man who built a career on Spock, Leonard Nimoy.

Last Updated: 2/20/2023Network:CBS
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Season 5
star
10.00
9 votes

#1 - Season 5

First Aired 9/20/1970

The fifth season of the original Mission: Impossible originally aired Saturdays at 7:30-8:30 pm from September 19, 1970 to March 6, 1971. "The Merchant" originally aired Wednesday, March 17, 1971 at 7:30-8:30 pm.

Season 6
star
10.00
4 votes

#2 - Season 6

First Aired 9/19/1971

The sixth season of the original Mission: Impossible originally aired Saturdays at 10:00-11:00 pm on CBS from September 18, 1971 to February 26, 1972.

Season 7
star
10.00
6 votes

#3 - Season 7

First Aired 9/17/1972

The seventh and final season of the original Mission: Impossible originally aired Saturdays at 10:00-11:00 pm on CBS from September 16 to December 9, 1972 and Fridays at 8:00-9:00 pm from December 22, 1972 to March 30, 1973.

Season 4
star
9.64
11 votes

#4 - Season 4

First Aired 9/29/1969

The fourth season of the original Mission: Impossible originally aired Sundays at 10:00-11:00 pm on CBS from September 28, 1969 to March 29, 1970.

Season 3
star
8.60
5 votes

#5 - Season 3

First Aired 9/30/1968

The third season of the original Mission: Impossible originally aired Sundays at 10:00-11:00 pm on CBS from September 29, 1968 to April 20, 1969.

Season 1
star
7.50
6 votes

#6 - Season 1

First Aired 9/18/1966

The first season of the original Mission: Impossible originally aired Saturdays at 9:00-10:00 pm on CBS from September 17, 1966 to January 7, 1967 and at 8:30-9:30 pm from January 14 to April 22, 1967.

Season 2
star
6.50
4 votes

#7 - Season 2

First Aired 9/11/1967

The second season of the original Mission: Impossible originally aired Sundays at 10:00-11:00 pm on CBS from September 10, 1967 to March 17, 1968.