Sherlock Holmes and the First Baker Street Irregular

On a dare from her fellow street urchins, young Wiggins tries to pickpocket a strange old man and instead receives a note directing her to 221B Baker Street. There she learns the man was Sherlock Holmes in disguise! After Wiggins observes Holmes solve a case, she proposes to work as his assistant. They must learn to trust each other as the group of street urchins help solve two dangerous mysteries.