In a twist on the puppy followed me home story, Dag sneaks a killer whale from a marine park to the pond. The predator soon wreaks havoc on the Beavers and their forest friends.
A mysterious present arrives for the boys on the day before their birthday, allegedly from their mother. Soon the package is driving the Beavers crazy displaying all sorts of weird behavior and eventually chasing them all around the dam.
Stare and Stare Alike!:
The two beavers have a staring contest that doesn't halt for anything... even the result of their long-awaited contest on TV.
I am Not an Animal I'm Scientist #1:
One of those weird scientists with the white coats is turned into a beaver and outmasters the two brothers with his new technological dam.
In Search of Big Byoo-Tox:
Unsneaky Dag enlists the help of a big hairy guy he thinks is the elusive creature, Big Byoo-Tox, to teach him his stealthy ways so he can take a toy away from his brother Norb.
When the scientist's neon-red "stupidity potion" ends up in the forest pond, all the animals begin to behave like idiots, including Norbert. Dag is the only animal who doesn't drink the potion and thus thinks that he has been left out of a new and exciting game. Not to be outdone, Daggett deliberately drinks the "stupidity potion," but finds out that he's immune to it. This turns out to be a good thing for the scientist and creatures of the forest, as Dag's belches become an antidote for the potion.
When Norbert and Daggett say the same thing at the same time, they play a game: the first one to speak gets a moogy-pinch. The boys spend the rest of the day trying to trick one another into speaking.
Daggett is mistaken for the long-extinct Horned Beaver by two bumbling scientists. Their zeal to protect such a rare animal quickly becomes dangerous for everyone around Daggett.
Battle of the Century:
Simon "the Monster Hunter" builds the ultimate monster hunting machine; The Simon-Mobile, in an attempt to capture a real monster. When the monsters get wind of this, they build a machine entirely out of garbage and go head to head battle with Simon. With The Gromble at the helm, the monsters emerge victorious.
A Perfect World:
Feeling like Ickis and Oblina are not paying him enough attention, Krumm moves out of their dorm room and into the room of two other monsters: Snav and Blib. These two monsters spoil Krumm with attention, which he needs at first. That's when Krumm realizes that being the center of attention is not all it's cracked up to be.
When Norb comes down with dreaded beaver disease, Stinky Toe, Daggett will stop at nothing to find a cure, but will he be able to find a cure despite the fact that no scientist before him has ever figured it out?
Tired of struggling to survive as wild animals, the beavers decide to become pets. They discover the easy life's not what It's cracked up to be when they get adopted by a family so wholesome and normal it drives then nuts.
Mission To The Big, Hot, Thingy:
The beavers are launched into space to see if they can build a dam in zero gravity. Once their scientific usefulness is over, they find themselves abandoned in space. The beavers must put aside their differences and band together to avert their almost certain doom.
I Dare You:
When Norb teases Dag because he's afraid to climb a tall tree, Daggett gets mad and dares Norb to do something more dangerous. Things get quickly out of hand, but neither brother can admit his fear and back down from the other's challenges
Beach Beavers A Go-Go:
Facing another long winter hibernating in their dam, Norb and Dag decide to 'Go South'. It's all sun and fun, but eventually the boys find out there are good reasons why beavers don't migrate for winter.
When a twist of fate puts the boys in the control of their wilderness as temporary rangers, the power goes to Daggett's head. In no time the park is a disaster area with the Beavers at the center of it all.
A Dam Too Far:
Seeking to exploit the beaver's natural instinct to build dams when they hear running water, the government parachutes Norbert and Daggett into a flood zone. Soon the brothers find themselves facing Daggett's river, which is a little hesitant, and has a mind of its own and no intention of backing down.
Long In The Teeth:
Beavers' teeth never stop growing and letting them grow long becomes the latest dangerous fashion fad. The boys soon discover there's a price to pay when you live in the fast lane of high fashion. Everyday stuff gets more difficult.