The Rottlers are triplets of Rottweiler pups that first appeared in "The Call of the Squirreldog". They were horsing around and chasing Mr. Nut Nut. They were scolded by Strudel. Squirt put them to bed, but they were not tired and they needed a story. Niblet joins when Squirt tells a story about three little puppies. After that they fell asleep.