Katie is thrilled when her parents finally agree to let her have a puppy. After seeing Timmy for the first time, she's sure her family will fall in love with him, just as she has.
But her sister, Jess, is worried about how Misty the cat will react to the new arrival. Katie thinks they'll get used to each other, but things don't go as planned. Every time Timmy tries to play with Misty, he upsets her and gets into trouble. Timmy is so sad. Why doesn't Misty want to be friends?