Pumarro is a member of the anthropomorphic felines known as the Qat. The Qat's rivals for their turf in Tresmundo, the Grrrufs, have chopped down all of their Gaea Trees except for one, which Splinter in the Ninja Turtles help protect, but in vain, as the tree's light gives out during the battle.
The Turtles, Pumarro and Splinter are captured by the Grrrufs and blamed for the death of the last Gaea tree. King Gorrrge orders them all burned at the stake. After lighting the fire, the Grrrufs leave Tresmundo permanently. Pumarro lets out a sonic "Meow!" and calls other Qats to them. After they are rescued, Donatello reveals that the crown he talked King Gorrrge into giving him is covered in Gaea seeds. Pumarro and the other Qat are overjoyed.