Speed and Twinkle awake back into consciousness. They enter the cave behind the Falls. Cornpone Brotch (identified as Cornpone Brush in the previous episode) and his thugs arrive with the treasure. Speed fights off the thugs, while Brotch escapes in the Mach 5. Using her experience as an escape artist, Twinkle frees herself and Speed from the ropes that bind them. Trixie, in her helicopter, along with Spritle and Chim Chim, spots Brotch in the Mach 5. Speed and Twinkle exit the cave; Trixie picks them up. Brotch enters his secret hideout located in Mount Rushmore. Later that night, Speed and the gang find the secret entrance. Inside the mountain, Speed and company find collections of stolen art and cars, including the Mach 5. Brotch surrounds them with ferocious black panthers. While Speed fights the cats, Twinkle jumps to safety, hanging from a chandelier. Meanwhile, Trixie races in the Mach 5 to save her friends. Brotch locks them all in the room.
At the base of a tall building, Speed and company watch Twinkle Banks, star of the Universal Circus, dive off the top. Then, at the circus, they watch Twinkle drive a racecar and perform daredevil stunts. She worries about maintaining the car's momentum and faints. Speed rescues Twinkle. While the girl daredevil rests in bed, a clown (her father) tells Speed that because of a money shortage, he's having difficulty keeping the track in good repair. Speed makes a donation. Later, Speed and Trixie learn on the radio that Twinkle will drive a car, balanced on two ropes, over Niagara Falls. Because of the strong winds Speed and Trixie try to stop Twinkle. Meanwhile, Cornpone Brush, who financed the stunt, tells the clown that Twinkle will perform regardless of the hazardous weather. When Speed and Trixie arrive, Twinkle is already making her way across the Falls. Away from the crowd, Brush reads an old map. It identifies a secret cave in back of the Falls that leads to treasure.
Varga revives and takes Victoria hostage as he works to revive his crew while the Doctor and Jamie find Penley stealing medical supplies.
A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an urbane, proper gentleman spy - teams with various assistants throughout the series' run, including Dr. David Keel, Cathy Gale, Emma Peel and Tara King, to repeatedly save the world from diabolical schemes plotted by equally diabolical evil-doers (among them robots and man-eating monsters).
Paris is targeted for destruction should the Allied armies invade, so Hogan and Kinchloe secretly travel to the French capital to learn more about the plot.
Number 6 comes across a body that has washed ashore with a radio. After sending the body back out to sea, he tries to use the radio to get rescued.
The Enterprise must transport dignitaries to a peace conference, with an assassin on the loose.
When Mother Superior goes on a business trip in Saint Thomas, Sister Bertrille uses her powers to give Plaseato something very important that she forgot. When the wind dies down, she lands on a small island where some gamblers are staying.
Because of a dodo bird Tabitha materializes, Endora and Clara have their powers switched! Dr. Bombay finds this out and returns the witches to normal.
An ingenious art theft takes place at Comus Towers Art Museum, and a guard is murdered in the process. Chief Ironside takes the case, but another death is to follow; this time the proprietor of the museum, who is an old friend of the Chief's.
The Joker plans to become the king of surfing, hoping the fame will give him control over the hearts and minds of Gotham City. He captures top surfer Skip Parker, then uses his "Surfing Experience & Ability Transferometer" to transfer the needed skills and stamina from Skip to himself. When all the other contestants drop out of the upcoming surfing match, Batman steps up to challenge the Joker's supremacy.
Granny is mixing up a batch of her moonshine & Jethro is trying out his frogman outfit in the cement pond. When Granny walks by the pond she thinks Jethro is a sea monster. Later Jethro sets of a charge in the pond & blows himself out of the water. Mr Drysdale gives Jethro some 'Money Man' comics & Jethro wants to meet the Moon maidens. Jed tells Mr Drysdale about the problem with Jethro & He suggests the Army Reserve. Jethro decides he wants to meet the moon maidens & fixes a rocket to his back & using granny's moonshine for fuel launches himself into the air. He lands in the ocean & is rescued by the coast guard.
A strange blue fog seems to be engulfing the Jupiter 2 periodically. Dr Smith and Will commment seperately that they want to be left alone. When the members of the Jupiter 2 begin to randomly disappear as the fog comes, Dr Smith thinks he is to blame. Eventually Will discovers a strange creature which takes over Dr Smith. The creature tells Will that he is his own Id. Will finds out his Id is a creature he created full of Will's own personal demons, thoughts, feelings and insecurities. Will defeats the creature by overcoming his ""fears"" and throws the powerless creature in the power core. The members of his family are returned.
Tony's mother comes to visit and she would like to see Tony married, much to Jeannie's annoyance.
A visiting professor is attracted to Aunt Bee because she resembles his deceased wife.
Carol and guest Richard Chamberlain attempt to make Lyle jealous; an airport interview with a "Mother of the Year"; musical numbers from Carol and the dancers ("Everybody's Gotta Be Someplace"), Richard with the dancers and singers ("Lazy Day"), and guest Gloria Loring ("A Taste of Honey" and "I've Gotta Be Me"); Carol and Vicki perform "Sisters Galore" sketch, and they and the dancers perform "Ballin' the Jack".
A deranged doctor moves to town and makes Victoria, then Audra, his next victim.
In an attempt to get money two prairie wolfers steal money from Dolan, a hardened storekeeper, then when one tries to give it back trouble starts.