Like most of us, Norb and Dag love cool breakfast cereal free gifts. But when Daggett's arduous quest to save 1,000 boxtops to get the ultimate boxtop toy is frustrated, the boys mail themselves to the cereal company to collect their prize.

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 centre of it all.

Most people can tell the difference between fantasy and reality, but not Daggett. So when Daggett's super hero fantasy life gets too embarrassing, Norb is forced to become a super villain to break him out of it.

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

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

Norb decides he needs some time alone to work on his new model. Dag, feeling spurned, decides to show Norb he doesn't need him and moves out--into his new Rockin' Bachelor Tree Dam.

Norb fakes being sick to get Dag to wait on him until Dag turns the tables by faking illness too.

Daggett is blackmailed by the government into becoming Muscular Beaver once more in order to fight a hundred-foot-tall rampaging splinter. Norb is forced to come along as Muscular Beaver's new sidekick. Hilarity ensues.

The Beavers squabble over who is best friends with Stump (their tree stump friend) and Norb reveals hurtfully that Stump was "transplanted." When a confused Stump goes off in search of his natural family, the boys follow after him with comedic results.

When Treeflower re-enters Norbert's life, he expects their love to blossom once more. However, Norb didn't count on the lure that large trucks have for beaver women, and loses Treeflower to Dag's arch enemy: Truckee the truck driving shrew.

Daggett and Norbert learn how to mark territory with their scent glands. Their fraternal jealousy kicks off a marathon of territory claiming across the dam, the forest, and the entire country. The boys finally learn their lesson at the hands of some rather smelly lumberjacks.

When Daggett stumbles onto a tribe of girl raccoons while out searching for knot holes, the tribe mistakes him for an ancient god. Norbert now has to snap Dag out of his delusions of grandeur, in order to save him from himself and the raccoons.

While on their way to a local sports coliseum, Daggett annoys the bus driver who accidentally drives the bus through "a hole in the fabric of space and time." The boys end up at the real Roman Colosseum, where Daggett picks so many fights both beavers are forced to become gladiators. After surviving man-eating lions and the dreaded Two-Eyed Cyclops, the Beavers lead Caesar's army on a madcap chase that topples Rome.

Daggett accidentally wins a magic bowling ball from the mystical Lady of the Lanes. Now able to hit a strike on every throw, he winds up in a high stakes tournament to free the bowling alley from the bowling, bullies, the Otto Brothers. However, he needs his brother's help to win, and Norbert wants no part of the game because of a bowling trauma he suffered years before.

Dag's intrepid superhero alter ego returns. This time a snowboarding Treeflower is roped in as his new sidekick, Goody Good Gal, when he once again faces his old nemesis Baron Bad Beaver (a.k.a. Norb).

Dag concedes that he can't win an argument against Norb. Dejected at the pond, he stumbles upon Laverta Lutz, the "magical, mystical, Lady of the Lanes." Laverta grants Daggett a wish. His wish is to leave Norbert speechless in an argument. Laverta tells Daggett that "the argument is not over until the fat beaver sings." Not knowing exactly what that means, Dag rushes back to the dam to battle it out with Norb. Just as he had wished, he leaves Norbert speechles when in the throws of battle, Dag turns into a fat, over-sized beaver who sings his arguments like a professional lounge singer.

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 Dag and Norb receive an unexpected visit from their dad, the Beavers' dam and lives are turned upside down. Together, Dag and Norb try to figure out a way to get Dad to reconcile with Mom, so that they can have fun again.

Dagget becomes Muscular Beaver yet again, and this time he's in the clutches of "Toe-Bot". Norb's planning a big party, but he reluctantly becomes Baron "Once-Bad-Then-Good-Then-Bad-Again-Now-Good-Again" Beaver in order to "save" Musuclar Beaver. Fortunately for Norbert, when his guests (Treeflower, Barry, Bing, Truckie, and Stump) show up, they think it's a superhero-themed costume party, and become "The Justice Guys (And One Gal)" in order to help fight Toe-Bot.

One of their bathrooms isn't working and Norb is hogging the other. What's a Dag in need of the toilet supposed to do?