Lottie is excited when a lost little girl, Blossom, arrives on her doorstep. Lottie, who only has Uncle Bobby in the world, has always wanted a sister. But Blossom isnt like other kids. She doesnt speak and is obsessed with her flower, refusing to go anywhere without it. But everything changes when Blossom gets sick, and she is taken away. Lottie, with the help of her friends, must do whatever it takes to rescue her.