Based on the children's book by S.E. Hinton, who wrote the YA novel, "The Outsiders," which got made into a 1983 movie with Patrick Swayze. "The Puppy Sister" is about a boy and his parents adopting an Australian shepherd puppy and name her Alesha. Even though she has animal instincts, and she can understand what their cat, Miss Kitty, says to her, Alesha is not exactly aware she'll grow up to be a dog. Also, the boy, Nick, wanted a sister and not a pet. Even though the parents love her and Nick warms up to her every now and then, Alesha wants to really connect with them and decides that rather than growing up to be a dog, she'll grow up to be a human girl. She starts off practicing to walk on her hind legs. Overtime, her flappy ears and muzzle shrink a little and she is able to SPEAK WORDS, to the family's amazement. Until Alesha becomes fully human, Nick and his parents decide to keep this situation a secret from everyone else. After a year passes since her adoption, Alesha now looks exactly like a seven-year-old girl. The book doesn't really explain how the transformation is possible, so in this movie, it will show that someone was experimenting on dogs, and an Aussie shepherd gave birth to a litter that inherited her changes, and the pups were mistakenly given away.
