Season 4
A Beaver's Tale: When the local river floods Nowhere, Shaggy, Scooby and Courage must locate the source of the disaster. When it turns out that a beaver's dam is causing it, Shaggy, Scooby and Courage helps the beaver follow his dreams rather than build dams.
The Nutcracker: The family go to the junkyard to hunt for useful trash, and Scooby and Courage finds a nutcracker. Two man-eating rats want to feast on Muriel, Eustace and Shaggy. After Eustace is captured, Scooby and Courage must get Shaggy and Muriel away from the rats.
Rumpledkiltskin: Muriel's "Uncle Angus" invites her to Scotland, where he imprisons her and demands that she makes thousands of kilts. Shaggy, Scooby and Courage must learn Angus's real name and free Muriel.
House Calls: A lonely scientist named Dr. Gerhart wants neighbors, but his sentient house, who is very old and envious, fends them away. He brings the farmhouse next to his house with music, but Gerhart's house intends on destroying the farmhouse out of sheer jealousy and wants Gerhart all to itself. Shaggy, Scooby and Courage has to find a way to make Gerhart's house happy and save the farmhouse.
Le Quack Ballon: Le Quack kidnaps Muriel and puts her on a hot air balloon. He teaches her to bungee-jump from the balloon so she can grab a Swedish ingredient for her food, but he is tricking her so he can rob the Swedish national piggy bank instead.
Windmill Vandals: If the windmill stops turning, the ghosts of terrifying dead vandals will return to attack everyone at the homestead. Shaggy, Scooby, Courage and Muriel must keep the windmill moving while Eustace tries to fix it.
The Uncommon Cold: Scooby and Courage seeks a cure for Shaggy and Muriel's unusual colds among some swamp-slugs enslaved by a snake named Big Bayou from Yoruba Mythology. The cure lies in Big Bayou's book, which Shaggy, (who stubbornly refuses to rest and insists on helping his friends.) Scooby and Courage must steal in order to heal Shaggy and Muriel and free the slugs. (Note: this is similar to the My Little Pony episode: A Health of Information where Shaggy refuses to rest, despite Scooby and Courage's protest.)
Farmer-Hunter, Farmer-Hunted: Eustace tries to prove that he can hunt like his deceased brother, Horst. But the deer families are tired of being hunted and the father deer decides to hunt Eustace instead. Shaggy, Scooby and Courage hosts a game show to see who gets to shoot whom.
Bride of Swamp Monster: Muriel buys a necklace and puts her picture inside, but she loses the pendant in a local swamp. The Swamp Monster finds it and believes Muriel is his long-lost bride. Shaggy, Scooby and Courage must locate the real bride of the Swamp Monster, and reconcile the long-lost lovers in order to get Muriel back.
Goat Pain: Muriel sprains her back and the only cure is a hot spring on top of Mt. Nowhere. The peak is guarded by a super-powerful goat angry at people for clogging the spring with trash. Shaggy, Scooby and Courage has to get past the goat and somehow restore the spring.
Muriel Blows Up: A missile strikes the farm, mutating a carrot in the garden. When Muriel eats it, she begins to grow. Shaggy, Scooby and Courage must figure out a way to get to the general and disarm the device before time runs out.
Profiles in Scooby and Courage: The family go to a county fair and have their silhouettes drawn. When the silhouettes come to life later that night and replace Muriel and Eustace, Shaggy, Scooby and Courage must convince the creatures it is more fun to be paper than people.
The Mask: A strange, dog-hating woman of an unknown origin named Kitty, wearing a mask and a white robe, appears at the farm. She recklessly starts beating Courage with various items and wants to do to Scooby, if it had not been Shaggy protecting his dog. Thinking that Kitty is just the trio's friend playing around with him, Muriel invites her over to the farmhouse to stay for a while. Kitty explains that her best friend Bunny is being held hostage and treated as a slave by a gangster named Mad Dog, who wants them to be kept apart for good. Shaggy, Scooby and Courage decides to rescue Bunny from Mad Dog in hopes that Kitty can leave so they can return to their normal life at home.
Squatting Tiger, Hidden Dog: A Chinese empress wants to grind up Muriel's bones. Shaggy, Scooby and Courage wants to save Muriel, but the three must pass through a series of strange deadly tests first.
Muted Muriel: Eustace berates Muriel, who has had enough of him for not listening to her, and she decides not to talk ever again. Shaggy, Scooby and Courage visits Shirley and asks her if she can make her talk again.
Aqua-Farmer: Unimpressed by Jojo the Dolphin's performance at a local aquarium, Eustace challenges the sea mammal to a race, losing pathetically. He demands a rematch, staking his wife and nephew as the prizes of the race.
Food of the Dragon: A seafood dinner attracts a dragon who has not learned to fly. He is determined to eat Muriel, Eustace and Shaggy unless Shaggy, Scooby and Courage can teach him to fly.
Last of the Starmakers: A pregnant space-faring squid who creates stars lands on the farm. Crystal and Amber (old friends from Scooby-Doo and the Alien Invaders) reunites with Shaggy and Scooby. Eustace plans to sell the mother squid's eggs to the military for research. Shaggy, Scooby, Courage Crystal and Amber have to save the eggs and the mother squid to keep the heavens twinkling.
Son of the Chicken from Outer Space: The three-headed son of Courage's first nemesis shows up, trying to fulfill a vow to kill him and his friends, but Shaggy, Scooby and Courage Courage is far more resourceful than the chicken anticipated.
Courageous Cure: A race of multi-limbed aliens arrive on Earth, seeking a cure for a virus which causes them to keep punching themselves. They experiment Muriel, Eustace and Shaggy by letting them grow more hands.
The Attack of the Revenge Hunters: Shaggy, Scooby and Courage's enemies Katz, Le Quack and the Chicken from Outer-Space collaborate to form the Revenge Hunters in order to annihilate the three. Shaggy, Scooby and Courage must outwit the Revenge Hunters. (Remake of Ball of Revenge)
Cabaret Scooby and Courage: The family come to "Hollowood". But after falling inside a manhole, they encounter a giant fetus-like being who demands entertainment. He explains to them that if he likes their performances, he will give out glamorous prizes. Shaggy, Scooby and Courage must find the beast's true self through their hearts.
Wrath of the Librarian: Courage finds a two-year overdue book. When he, Shaggy and Scooby decides to return it, they doe not have enough money for the $10,000 fee. Shaggy, Scooby and Courage rushes back home to seek the help of Muriel and Eustace. However, they realizes too late that the librarian has deliberately cast a spell on the book, which Muriel and Eustace unknowingly touch, turning them into its characters until Shaggy, Scooby and Courage finds enough money to pay the fee.
Remembrance of Courage Past: Courage's mysterious past comes to light when his parents were forcibly sent to space by a cruel veterinarian. When Muriel, Eustace, Shaggy and Scooby notice he is not responding, still haunted by that treacherous event, they take him to the same vet that sent his parents into space, unaware that the vet is now going to send Courage off to space as well. When Muriel, Eustace, Shaggy and Scooby discover this, the vet attempts to send them off along with him as well to keep them from interfering with his evil space research plans. Courage must save his family after realizing that Muriel, Shaggy and Scooby have all become major people in his life, besides his parents. (Note: there will be an epilogue to the episode where Courage explains his past to Shaggy and Scooby.)
Perfect: When Courage cannot do anything correctly, the "teacher" approaches him, who is the manifestation of Courage's own doubts and insecurities that have plagued him. Doesn't help that Shaggy and Scooby are both returning to Coolsville after summer ends. The teacher trains him strictly into becoming a perfect dog, but in the end, Courage learns that there is no such thing as perfect. Later, as the episode concludes, it is implied that Courage has accepted the fact that he is perfect the way he is, and Shaggy and Scooby will always be his first best friends no matter where they go and will come back again. (Note: there will be an Epilogue to the chapter where Shaggy and Scooby saying goodbye to Muriel and Courage.)