Mission: Impossible (season 4)

Mission: Impossible (1966–1973) (season 4)
Country of origin	United States
No. of episodes	26
Release
Original network	CBS
Original release	September 28, 1969 (1969-09-28) – March 29, 1970 (1970-03-29)

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

Cast

Character	Actor	Main	Recurring
Jim Phelps	Peter Graves	Entire season
Paris	Leonard Nimoy	Entire Season
Barney Collier	Greg Morris	Entire Season
Willy Armitage	Peter Lupus	Entire Season

Episodes

Series #	Episode #	Title	Directed by	Written by	Original Airdate	Production #
79	1	"The Code"	Stuart Hagmann	Ken Pettus	September 28, 1969 (1969-09-28)	78
In order to stop an invasion and shatter an alliance between two countries, the IMF team must photograph and break a code in a matter of minutes, by mounting a chosen-plaintext attack. First appearance of Leonard Nimoy as Paris. For this season, the series does not replace Cinnamon Carter with a regular female lead, but uses a succession of guest stars.
80	2	"The Numbers Game"	Reza S. Badiyi	Leigh Vance	October 5, 1969 (1969-10-05)	80
The IMF team tries to get a deposed dictator to divulge his Swiss bank account number by making him believe World War III is about to begin. The Wayne Manor set from the 1960s TV series Batman is featured in this episode and for the second time in the series; it was previously featured in the second season episode "Charity" (S02/E10).
81	3	"The Controllers: Part 1"	Paul Krasny	Laurence Heath	October 12, 1969 (1969-10-12)	76
Jim and a female agent pose as scientist who claim to have invented a new, more efficient drug which turns people into willing slaves. Their objective is to replace the real drug with a placebo.
82	4	"The Controllers: Part 2"	Paul Krasny	Laurence Heath	October 19, 1969 (1969-10-19)	77
Continuation of previous episode.
83	5	"Fool's Gold"	Murray Golden	Ken Pettus	October 26, 1969 (1969-10-26)	83
Paris poses as a counterfeiter in order to get access to and destroy a safe containing 100 million drona worth of counterfeit money as well as the plates used to make it. If the counterfeit money is released then that nation's gold reserves will be depleted and the pro-Western government will be overthrown in a revolution.
84	6	"Commandante"	Barry Crane	Laurence Heath	November 2, 1969 (1969-11-02)	81
Jim and Willy pose as U. S. religious workers who are willing to trade guns in exchange for the life of an imprisoned priest who is about to be executed.
85	7	"Submarine"	Paul Krasny	Donald James	November 16, 1969 (1969-11-16)	85
An fanatic ex-SS officer plans to fund neo-Nazis with stolen money upon his release as a prisoner. The IMF team simulates a submarine journey to trick him into divulging his Swiss bank account number. In addition to being the only person to write for both Mission: Impossible and Joe 90, this was veteran British television writer Donald James's only script for the series (and his only work for American television).
86	8	"Mastermind"	Georg Fenady	Teleplay: Jerry Ludwig Story: Jerry Ludwig and Richard Neil Morgan	November 23, 1969 (1969-11-23)	79
Paris convinces a mob figure that he can read the mind of his double-crossing boss, while Barney attempts to steal an incriminating file from the boss's safe.
87	9	"Robot"	Reza S. Badiyi	Howard Berk	November 30, 1969 (1969-11-30)	82
A country is unaware that its premier is long dead and has been replaced by a double (both played by Leonard Nimoy) who is about to name a successor.
88	10	"The Double Circle"	Barry Crane	Jerry Ludwig	December 7, 1969 (1969-12-07)	84
An art lover is made to believe he can own a priceless Buddha statue. In the meantime the IMF team tries to retrieve a formula by breaking into his impenetrable safe.
89	11	"The Brothers"	Murray Golden	Teleplay: Leigh Vance Story: Robert C. Dennis	December 14, 1969 (1969-12-14)	86
A Middle Eastern king needs to be restored to the throne, so the IMF team simulates a kidney transplantation during which he seemingly will donate his kidney to his murderous brother.
90	12	"Time Bomb"	Murray Golden	Paul Playdon	December 21, 1969 (1969-12-21)	90
The IMF team must stop a terminally ill renegade Allied agent from detonating an atomic bomb in an enemy capital.
91	13	"The Amnesiac"	Reza S. Badiyi	Teleplay: Robert Malcolm Young and Ken Pettus Story: Robert Malcolm Young	December 28, 1969 (1969-12-28)	91
A stolen isotope could make atomic weapons affordable to every country in the world. Paris poses as an amnesia victim to retrieve the stolen isotope.
92	14	"The Falcon: Part 1"	Reza S. Badiyi	Paul Playdon	January 4, 1970 (1970-01-04)	87
The IMF team must stop an arranged wedding between the king (Noel Harrison)'s sister Francesca (Diane Baker) and a ruthless usurper to the throne (John Vernon), and rescue the king, Francesca and the man she truly loves.
93	15	"The Falcon: Part 2"	Reza S. Badiyi	Paul Playdon	January 11, 1970 (1970-01-11)	88
The wedding is halted when Francesca shoots herself dead… or does she?
94	16	"The Falcon: Part 3"	Reza S. Badiyi	Paul Playdon	January 18, 1970 (1970-01-18)	89
The IMF launch the last stage of their plan, but time is running out… This is the series's only three-part episode.
95	17	"Chico"	Herb Wallerstein	Ken Pettus	January 25, 1970 (1970-01-25)	92
The IMF team plans to use a trained dog named Chico to retrieve two parts of a microfilm that, when combined, reveal a list of double agents who have infiltrated a drug cartel and who are in danger of being exposed by the microfilm.
96	18	"Gitano"	Barry Crane	Laurence Heath	February 1, 1970 (1970-02-01)	94
Paris, Willy and guest agent Zorka (Margarita Cordova) pose as gypsies and rescue a 12-year-old king (Barry Williams). To fool his assassins, the king has to dress up like a girl.
97	19	"Phantoms"	Marvin Chomsky	Laurence Heath	February 8, 1970 (1970-02-08)	95
Using a clever projection system a dictator is made to believe that he sees the spirits of his dead victims. He must be removed from power so a political moderate can take control of the government and stop the planned purge of the nation's pro-West artist community.
98	20	"Terror"	Marvin Chomsky	Laurence Heath	February 15, 1970 (1970-02-15)	93
Jim and his team must infiltrate a prison to block the release of a ruthless terrorist who is about to be pardoned.
99	21	"Lover's Knot"	Reza S. Badiyi	Laurence Heath	February 22, 1970 (1970-02-22)	96
The IMF must break a spy ring in London. Matters get complicated by the fact that Paris develops feelings for the beautiful Lady Weston, who is part of that spy ring. After that, he is cast as a jealous lover in a romantic love triangle.
100	22	"Orpheus"	Gerald Mayer	Paul Playdon	March 1, 1970 (1970-03-01)	97
The IMF team must stop an unknown assassin.
101	23	"The Crane"	Paul Krasny	Ken Pettus	March 8, 1970 (1970-03-08)	99
Jim and his team rescue a prisoner and hide him at a conspicuous location right under his captors's noses. Then they use the rescue to topple the military junta that rules the nation.
102	24	"Death Squad"	Barry Crane	Laurence Heath	March 15, 1970 (1970-03-15)	100
While on holiday with Jim, Barney kills a man in self-defense and is marked for execution by the dead man's brother (Pernell Roberts), a corrupt chief of police. The IMF team must rescue Barney before it is too late.
103	25	"The Choice"	Allan Greedy (and Barry Crane)	Teleplay: Ken Pettus Story: Henry Sharp	March 22, 1970 (1970-03-22)	98
A mystic (Leonard Nimoy) plans to abuse his powerful influence over a duchess to ascend to the throne.
104	26	"The Martyr"	Virgil W. Vogel	Ken Pettus	March 29, 1970 (1970-03-29)	101
Paris poses as the son of a martyred youth leader in order to stop a dictator who plans to crush the youth movement of his country.