S1 • E1
S1 • E2
Henry is persuaded to meet with enemy agent "The Decorator". But the agent turns out to be nicknamed "The Liquidator" instead. Having to secure his cover as U-31, Henry is tasked to eliminate a little old lady who has defected.
S1 • E3
Hanahan needs Henry to meet with a Japanese spy to get a microfilm from him. So he trains Henry in martial arts and Japanese. But Henry freaks out when he learns that the mission is on the same day as Mrs. Kimble's birthday party which Henry organized. But Hanahan arranges for Henry to be a hero to Mrs. Kimble so she won't miss him when he goes on his mission.
S1 • E4
S1 • E5
Hanahan wants Henry to make contact with a pair of agents who are married, to get something from them. Problem is that the wife has the hots for U31 and the husband is insecure when he's around. And when he catches them in a compromising position, Henry tries to explain it and asks for the item which he gives to him. Henry brings it to Hanahan who was listening on the whole thing. He plays back what they heard after Henry left and what they heard was that the husband suspects Henry is not U31 so he didn't give him the actual item. They have a date later that evening and he plans to test him and if he fails, he will shoot him. Hanahan tells Henry to try and convince the wife to tell him how he is going to test him and maybe Hanahan can find out what the answer is before he has to answer.
S1 • E6
S1 • E7
Henry assists in finding the whereabouts of a kidnapped scientist.
S1 • E8
S1 • E9
Hanahan wants Henry to meet a female agent named Gina to get something she's bringing for U31. But it turns out that she's one of U31'a ladies and she has it bad for him. He gives Henry a very provocative photo of her with love inscription on the back and writes the hotel where she'll be staying and the room number. Mrs. Kimble sees it and thinks Henry is cheating on her daughter so she goes there. And she finds Henry with her. Henry then sends her to get the thing, while Hanahan makes preparations for Mrs. Kimble whom they saw.
S1 • E10
S1 • E11
S1 • E12
S1 • E13
Hanahan tells Henry he wants him to make contact with an agent who knew U-31 known as the Butcher. Henry tells him he has a job at a military base. Hanahan reminds Henry of his duty but he gets word that they lost track of the Butcher. Henry suggests that Hanahan take a vacation and he decides to go to Hawaii. But as he is leaving the Butcher spots Henry thinking he's U-31. He follows him to the base and makes contact with him and tells him they need to steal something from the base. Henry trips the alarm and they are caught that's when Hanahan learns that Henry is in jail with the Butcher and rushes back. He tries to get Henry to get the Butcher to tell him all about their plans. Then he tells Henry that he's going to give him an out of being U-31 but things don't go as plan.
S1 • E14
S1 • E15
Hannahan wants Henry to meet with an agent known as the Crusher. So he goes to meet him and he tells Henry that he wants him to get rid of Hannahan. So Henry tells him and they decide to stage the hit. So Henry meets with Crusher while Hannahan puts a dummy in place. But Henry misinterprets the message telling him what time when he's suppose to go and finds Hannahan resting on his couch, thinking it's the dummy and takes a shot at him.
S1 • E16
S1 • E17
Henry Wadsworth Phyfe
Chief Gerald B. Hannahan
Judy Kimball
Mrs. Florence Kimball
Sandy
Mr. Hamble
Chou Chou
Maid
Googie
U-45