Brian befriends a prehistoric caveman who was frozen in ice since the Ice Age. This spark interest from the Crooks since the caveman bears a striking resemblance to Berserko and is believed by the crooks to be Berserko's direct ancestor.
Lion-O, Panthro, and Snarf set out to look for more pieces of the Treasure of Thundera, and Mumm-Ra sets a trap for them. He freezes them in the caverns of cold on Thundera. Meanwhile, back on third earth, the Luna-tacs, in need of another source of power for their ship, use exercise machines to power it up. They capture the other Thundercats and force them to workout on the machines to power up the ship. The Thundercats manage to overwork the power supply, and escape from Sky Tomb. Back in the caverns, Snarf manages to get the sword of omens to Lion-O with his tail, and they escape and return to third earth.
One of nature’s perfect creations -- the misty, splashing waterfall -- is painted by Bob Ross, in all its magnificent splendor.
At the Scooby Snack factory, where Scooby's food is being made a strange accident occurs at the cheese lab. The workers are all chased away by a strange cheese creature demanding that Scooby Snacks stop being made.
A woman tries to get her Uncle Edgar committed, believing that he is senile. The investigating doctor finds Edgar living in an apartment containing all kinds of junk. Edgar claims that a mysterious Voice tells him what junk to collect, and to assemble it into a device that constantly keeps the world in balance. The doctor has him committed, only to realize when a small Pacific island is destroyed as Edgar predicted that the "insane" man is anything but. The doctor has Edgar released, only to discover that he has been chosen to replace Edgar as the new "balancer" of the world.
The babies bulid Nanny a ""picture box"" with a fairy tale scene, and each babie pretends to be a character.
A ghost of a Gummi knight leads Cubbi on a quest.
Garfield plays in a cardboard box, imagining himself driving a race car and flying an airplane. When Odie joins, he and Garfield imagine themselves stranded in the ocean.
Roy takes advantage of Orson's overactive imagination to pretend that Earth is being invaded by aliens that resemble cheese danishes. While most of the farm panics, Lanolin investigates Roy's prank.
After Garfield is mean to Nermal, Jon sends him to a strict obedience school, where he is treated as a prisoner.
Pooh borrows a balloon from Christopher Robin.
When the gang goes camping, Piglet is frightened by Tigger's stories and comes up against one of his greatest fears: Heffalumps.
Dave meets a woman he really feels a strong connection with. At first the boys disagree, but finds she can get along with all of them. The only thing preventing this relationship to work is her own three boys clashing with the Chipmunks.
Having blown the safe in Lieutenant Gruber's bedroom, René and Leclerc are surprised by its contents. The Communist Resistance lies in wait for their escape, and holds them hostage in a sawmill.
Pee-wee has to eat his words when he tells the gang how important dental hygiene is and, then, develops an ow-some toothache! Since Jambi is taking a head-turning vacation at Mount Rushmore, Pee-Wee is forced to face his greatest fear - the dentist! He's so afraid, it'll take Miss Yvonne's coaxing just to get him to go. When he finally does make "it," Pee-wee learns that visiting the dentist is nothing to grit his teeth over and can actually be fun.
A Werechicken strikes an unsuspecting farmhouse, leaving a trail of mayhem and one very large egg. After a hungry Slimer tries to cook the egg and unintentionally hatches it, the newborn Werechicken bites Egon, turning him into a half-man, half-chicken creature!
Tygra, Cheetara, and Bengali bring back a few more pieces of the Treasure of Thundera. Snarf is fascinated by a bracelet and takes it to wear around. He sees that everyone obeys his every command when he has on the bracelet. Mumm-Ra also notices this. He goes to Cats Lair, takes the bracelet, and turns Lion-O, Cheetara, Tygra, and Panthro into his slaves. He takes them to his pyramid and locks them in a cell. Snarf and the Thunderkittens decide to go rescue the Thundercats. At the pyramid, when Snarf encounters Mumm-Ra, Snarf acts like the bracelet is controlling him, but he is actually immune to the bracelet's power. Meanwhile, the Thunderkittens take back the Sword of Omens, which Mumm-Ra had taken. Mumm-Ra, now trusting Snarf, goes to sleep in his casket, and Snarf takes the bracelet back. The spell is broken and the Thundercats escape from the cell. Mumm-Ra confronts them, but Lion-O uses the Sword to lock Mumm-Ra in the cell.