Welcome to Muttgomery! It's the nicest little city in an all-dog world, and the home of Pretzel, Greta, and their five adorable dachshund puppies: Puck, Pedro, Paxton, Pippa, and Poppy. Pretzel and Greta have a knack for encouraging their pups to follow their passions and make the world a better place! When the pups see a problem in town--a big, boring wall at the park--they get their paws up, and the whole city involved, in a colorful solution.