After a scary bedtime story, Sister Bear is too frightened of the dark to shut her eyes. But her parents give her some sound psychological advice and a night-light that help her conquer her fears.
At the Bear Country Fair, Too-Tall Grizzly begins to taunt Brother Bear. They get into a fight, which ends in a challenge of strength between Papa Bear and the formidable Two-Ton Grizzly.
Weasel McGreed and Raffish Ralph hypnotize Bigpaw into attacking Bear Town, but Brother and Sister break the spell in a flash. They know you can't make someone do something they really don't want to do.
Weasel McGreed, The Arch Weasel, creates an ultimate bee-eating plant, Super Honeybell, to take down Bear Country. He chooses Raffish Ralph to trick Mama Bear into planting this unusual plant.
Brother and Sister get involved in a fight that lasts all day long. Mama Bear intervenes, and reveals that everyone argues once in a while, even with loved ones.
After being arrested for being too big and clumsy, Bigpaw receives the chance to save Bear Country from the effects of an earthquake--and is declared a national treasure.
Raffish Ralph seizes an opportunity to trade Bigpaw some pet geese for a gold rock. After the geese cause trouble and scare off good help, Bigpaw must return them to their mother.
Mrs. Honeybear asks Brother and Sister Bear to look after her cat Puff while she's away on a trip with her family, and Puff's unique meow inspires the Berenstain Bears onto a quest to figure out why cats meow.
Papa Bear is out fishing for a catfish named Old Jake when he discovers a shoe in Lake Grizzly. When the cubs see Old Jake cough, they realize that there is too much poisonous junk in the lake.
The Bear Detectives are on another mission when they get the news that all of the antique treasures in the Grizzly Mansion have been stolen and replaced with counterfeits.
The Ice Carnival is starting soon. Suddenly, Raffish Ralph spots an ice monster. The ice monster is revealed to be a sleepwalking Bigpaw, who decides to skip his hibernation and join in the fun.