While in the middle of throwing a party, the beaver brothers receive word that a volcanic tornado is coming through the forest. Norbert and all of his friends get inside of a "volnado" shelter, though Daggett and Truckee find themselves stuck inside of the dam and they must work together in order to try to escape with their lives.
- The Poseidon Adventure - The plot and title for the episode are homages to the 1969 book and 1972 film.
- Nick Bakay as Norbert
- Richard Horvitz as Daggett
- Dick Clark as Click Dark (listed as Lefty Redbone in credits)
- Mark Klastorin as Truckee
- John Garry as Barry
"The Big Frog"