The story begins with the the little mouse boy, Tim, who was in the attic to see the memories of Bernard and Miss Bianca rescue Penny and Cody. Before, Tim has his family was Bernard and Miss Bianca to become the family. The human boy, Scotty, from London and he's moving to New York City with his father and his fiancee to married in New York City. Before, the kidnappers with his boss, steal the animals, in U.S.A., Scotty is helping the mice of Rescue Aid Society to San Francisco, California.
