Tilda goes along to puppy school with Harry and his pup Jimbo, and meets lots of doggies waiting for their forever home. Surely, Tilda's family would be a great forever home for a needy dog. But her parents say no. They tell her that Baby Joe is too young for a pet and that dogs are expensive. Tilda is grumpad! That's right, grumpy and sad.

She plans to make the money to pay for her own doggie, by running a class making animal care products to sell at the school stall. But when her plans unravel, Tilda turns her very grumpiness to Baby Joe...