The Cats Lair is the new home of the ThunderCats on the planet Third Earth. Shaped like a gigantic sitting cat, this fortress has numerous rooms as well a an array of defensive weaponry.
After crashing on Third Earth, the ThunderCats had no place to live. Fortunately, the Berbils, whose village was destroyed in the crash, turned out to be excellent and speedy builders. Using the blueprints that Tygra always carried with it, the hard-working robotic bears were able to construct the mighty Cats Lair in no time at all.