The Doctor and his friends face a race against time to expose Forrester's plans and return to normal size before Barbara succumbs to the effects of DN6.
As Matt takes a convicted man to Hays City for hanging, Matt and the prisoner are waylaid and the prisoner lynched. Matt is framed for the killing, then arrested by a sergeant with a grudge against him.
A young couple, simple, naive, and very much in love, move into the house next to the Addams'.
An impostor disguised as Race is infiltrated into Dr. Quest's expedition to gather a rare pharmaceutical plant by Dr. Zin (who covets the plant's potential mind-control properties) in the jungles of Thailand.
The 918th is assigned in top secrecy to bomb Dortmund. The only one who has the details is Savage and after being briefed by Stoneman, Crowe & Colonel Meyers he heads back to base. On the way he is caught in an air raid and is rescued by Doker Drew. Drew escorts Savage and another straggler Jennifer Heath back to Heaths place so that Savage can telephone the base. After the air raid subsides Savage & Jennifer are surprise by a wounded German flier, wearing the uniform of an Obergefrieter (Corporal). Savage recognizes the man for what he really is a German Oberst (Colonel) in the Luftwaffe. After a struggle Jennifer is wounded and Savage is forced to kill Haff.
Trying to be neighborly, Fred and Barney offer to babysit for the Gruesome family, who've moved into Tombstone Manor next door with their weird kid and a menagerie of creepy critters.
With her husband working overtime, Samantha is bored and agrees to have lunch in Paris with Endora. She happens to run into Larry and Louise Tate while there, creating confusion and hard feelings between Samantha and Darrin. After some missed connections, Samantha and Darrin fly to Paris together.
Rock 'n' roll idol Johnny Poke visits the Clampetts while in town to play the Hollywood Bowl. Granny's not too happy about it; she's worried Jethro will pick up his bad habits. Granny loses her temper and thinks she turned Jethro into a puppy when she says he needs to be taught a lesson.
Kimble finds refuge from the police in a rural farm house, where he meets Mattie Braydon, a sculptress who suffers from hysterical blindness whom lives with her older sister and their uncle. Mattie protects Kimble and while hiring him as a farmhand, she also begins using him as a model for her clay sculptures see keeps in the barn. But Kimble soon finds out that the sweet and innocent Mattie is in fact a possessive and manipulative sociopath who wants Kimble for herself and will do anything, including committing murder, to ensure her dark secrets of her past never get revealed.
Barney angers a local businessman who threatens to break every bone in his body if he sees him out of uniform, so Barney starts wearing his uniform everywhere. Andy has an idea to help him by changing a little more than his clothes.
Stalemate on the Western Front saw Allied generals look for victory via an alternative route – the Middle East.
The Castaways are faced with running out of food, when a blight threatens to destroy many of their plants. When Gilligan finds a duck in the lagoon, a difficult decision must be made. Should they eat the duck, or tie a rescue note to it and let it fly away?
A college professor recreates the environment of a distant planet in a lab in order to study its evolution... which happens quickly.
When a young pregnant woman seeks Kitty's aid in escaping from the child's father, the two women take the stagecoach from Dodge and meet with greater danger.
Ian and Barbara are accidentally taken into Smithers' laboratory and, while the Doctor and Susan face a hazardous journey to reach them, they witness the deadly effects of DN6 first hand.
Dr. Zin sends a large, black, cyclopean, four-legged spider-like robot (by a flying saucer-like craft) to a U.S. government research facility in the American Southwest to steal the secrets of a para-power ray gun on which Dr. Quest is working.
Gomez throws a fit of jealousy when Morticia's former boyfriend visits.
Major Jack Temple leads the low Squadron on a raid to bomb the flying Bomb (V2) assembly plant at Laon. His aircraft ""The Lucky Lady"" is hit and he is forced to bail out with his crew. Major Temple and 4 of his crew (Kinner, Nichols, Weinstock & Moody) are captured and taken before Oberst Alfred Hoeptner, the commander of the Laon facility. Hoeptner decides that he is going to keep the men prisoner at the factory to prevent them from being bombed. Major Temple states that it is a violation of the Geneva Convention, and Hoeptner aggress hoping that the Americans will file a protest with the Red Cross. All he needs is a little time to close down the factory and move the machinery elsewhere. Back at Archbury, Frank & Harvey are listening to Lord Haw Haw's broadcast outlining the capture of Temple and the fact that he and his men are being held at Laon. Frank and Harvey head off to the officers club, and when Harvey suggests darts, Savage comes up with the idea of pinpoint bombing the targ