![](https://thumbnails.cbsig.net/_x/w400/CBS_Production_Entertainment_VMS/2020/09/26/1795883587809/NICKELODEON_THEANGRYBEAVERS_001_287061_1920x1080.jpg)
Born To Be Beavers/Up All Night
23M NOV 05, 1999 TV-Y
S4 E4: The boys take a voyage to the bottom of the pond in their own Beaver-rigged submarine, the Norbalus. A family of freeloading otters moves in on the boys, turns their lives upside down and threatens to take over their dam.