“Phyfe and a Filly,” 1966 January 13
Note: Director: Charles R. Rondeau
Writer: Hannibal Coons, Harry Winkler, Phil Leslie
Summary: Enemy agent U-31 comes to the U.S. and is killed. C.I.S. sub-chief Gerald Hanahan discovers Henry Phyfe, who looks identical to the late U-31 and convinces Henry to work for U.S. Counter Intelligence under the guise of U-31. Henry's first mission is to trade horses with another agent on a forested trail.

“Phyfe on a Ferry,” 1966 January 20
Note: Director: Charles R. Rondeau
Writer: Harry Winkler, Hannibal Coons, Ronald Axe
Summary: Henry must meet with an agent called the Decorator, who awards agents, but gets mixed up and instead meets with the Liquidator, who assassinates agents. Berry Kroeger, Lillian Bronson and Robert Ivers co-star.

“Whatever Happened to Yesterday?,” 1966 January 27
Note: Director: Leslie H. Martinson
Writer: Ben Starr
Summary: U-31 (Henry Phyfe) must get some microfilm from a Japanese connection; at the same time he must throw a birthday party for Judy's mother Florence.

“Phyfe and the Models,” 1966 February 3
Note: Director: Leslie H. Martinson
Writer: Leo Rifkin, Henry Sharp
Summary: Henry pretends to be an artist in order to steal back information for the American government, but his disguise is compromised when he is forced to paint actual models. Florence becomes suspicious and decides to follow Henry. John Vivyan co-stars.

“The Reluctant Lover,” 1966 February 10
Note: Director: Howard Morris
Writer: Leo Rifkin
Summary: Henry receives a list of double agents from two married agents who knew U-31. The husband does not believe that Henry is U-31, and challenges him to a test that will prove his identity, causing Henry to be late for his date with Judy.

“Phyfe's First Felony,” 1966 February 17
Note: Director: Charles R. Rondeau
Writer: Rich Eustis, Al Rogers
Summary: A man has stolen government documents and threatens to expose the entire security operation. He will only deal with U-31, and Henry Phyfe is pressed into action to pay money for the documents. Peter Leeds and Kenneth S. Allen co-star.

“The Old Flame,” 1966 March 10
Note: Director: Arthur Lubin
Writer: Leo Rifkin
Summary: Henry is ordered to acquire documents from U-31's former lover and fellow spy, Gina. Judy's mother finds a picture of Gina and the arranged time and meeting place and becomes determined to catch Henry cheating on Judy. Francine York, Tom Hatten, John Hart, Curtis Taylor, and Breena Howard co-star.

“Operation Henry Phyfe,” 1966 March 17
Note: Director: Arthur Lubin
Summary: Henry meets a higher-up from U-31's home country, who wants Henry to impersonate another agent. In order to do this, he wants Henry to undergo plastic surgery.

“Visit to Washington,” 1966 March 24
Note: Director: Leslie H. Martinson
Writer: Harry Winkler, Hannibal Coons
Summary: Mr. Hanahan sends Henry to Washington to meet an enemy agent whose mission is to steal documents from the U.S. government. Things become chaotic when Henry and the rogue agent break into the wrong office. Eileen O'Neill and Lennie Bremen co-star.

“Phyfe Takes a Wife,” 1966 March 31
Note: Director: Arthur Lubin
Writer: Jerry Gottler, John Bradford
Summary: Henry goes on a date with one of America's top nuclear physicists to test her loyalty, and ends up marrying her in an attempt to catch her divulging state secrets.

“Jail Bird Phyfe,” 1966 April 7
Note: Director: Howard Morns
Writer: Nat Perrin, Sloan Nibley, Bill Lutz
Summary: A foreign agent called the Butcher seeks out U-31 to obtain classified documents. Believing Henry to be U-31, both Henry and the Butcher are caught and end up in jail.

“Shot in the Dark,” 1966 April 21
Note: Director: Howard Morris
Writer: Bill Freedman, Ben Gershman
Summary: An enemy agent named Crusher pressures Henry into assassinating Mr. Hanahan to prove that he is a true double agent. Hanahan and Henry arrange to feign Hanahan's death by using a dummy.

“Will the Real U-31 Try to Stand Up?,” 1966 May 5
Note: Director: Howard Morris
Writer: Bruce Howard, Brad Radnitz
Summary: Phyfe and Hanahan go to the fair to make contact with Dmitri, an enemy agent. Hanahan accidently hits Phyfe in the head with a baseball, causing Phyfe to forget his identity. Jackie Joseph, Arthur Batanides, Remo Pisani, Phil Garris, Rena Horten, and Louise Lawson co-star.