Louise and George are heartbroken when they discover Lionel and Jenny are having marital problems that result in a separation. This prompts George, Louise, Helen and Tom to convene to try to get them back together.
Ponch and Jon struggle to keep their eyes on a visiting motorcycle star who keeps pulling screwball shenanigans all around town in the pursuit of love.
A leprechaun gives the gang all sorts of hell in this adventure.
Scrappy has to deal with Baby Scooby and Baby Shaggy after a steam bath mishap.
Scooby and the gang go to China and encounter a Dragon.
The Trobbits sail to Red Crown Reef to supply the Merminites with Sagar fruits and nuts. But Captain Typhod the Phantom Sailor attacks, captures the Merminites and all the fruit.
After being defeated by Thundarr, the evil wizard Sarott finds a research lab that holds the miniaturized City of Thieves. Its ruler Vortak promises Sarott a free rein to use the city's advanced army to enslave humans and other wizards if he can restore it to normal size. To do so, he'll need the Gauntlet of Power which can boost his magic to enlarge the city.
Vicki models the bridesmaid's gown she plans to wear for Julie's wedding, while Isaac finds a flaw in the wedding gift that he bought on the crew's behalf.
David befriends a rookie baseball player who gets mixed up with a crooked sports agent.
Del meets Trigger in The Nag's Head, and he's stunned to hear that Pauline Harris, his ex-fiancée, is back in Peckham - twelve years after she left for America. Despite their engagement, Pauline left Del for another Mod with a faster scooter. But with her return, Del is willing to forgive and forget, and it's not long before they are engaged again - much to the disapproval of Rodney and Grandad. Things get worse when Pauline moves into the flat and refuses to do her share of the housework. As her behaviour becomes unbearable, Rodders and Gramps leave for Auntie Rose's...
Dorian, owner of the spaceship Scorpio, rescues the crew from Terminal. He tries to enlist the help of Orac to build a teleport mechanism for Scorpio and attempts to kill the crew.
Timelord Kadray uses his scepter to revert the Sagar Tree into an acorn. With this he plans to reactivate the dreaded Fountain of Fire.
The trio investigate a sector called the Mystery Zone where several ships get wrecked on an island. They learn the evil witch Circe is responsible as she needs a young sorceress to overcome a curse in which she will turn to stone if she leaves the island. When Ariel arrives with Thundarr and Ookla, Circe gets her opportunity as she switches bodies with her and becomes a threat to the others as she tries to leave the island.
Shaggy and the dogs end up in Outer Space where they encounter an alien hell-bent on destroying the Earth.
A voyage to Atlantis puts the gang at the wrath of an evil Centaur.
Scooby pulls out the magical sword of Excalibur and he is made ruler.
After a large meteorite falls into a mountain valley some distance away, Dr Elefun, Astro, and a team of scientists head off to investigate the crash.
Eager to forge new business contacts, Del befriends Vimmal Malik, a wealthy businessman who seems eager to work with Trotters Independent Traders. After a dance at the Camberwell Chamber of Trade, Del and Vimmal are cornered by Mr Ram and his heavy boys. It seems that Vimmal is holding onto a pricey porcelain family heirloom that belongs to the Ram family - and they want it back. In order to make an impression, Del offers to mediate between the two men, especially because Mr Ram is willing to pay four grand for the return of the statue to his family. Unluckily for Del...