Scout's Honor (1980)

Gary Coleman stars as little Joey Seymour, a clever but lonely orphan shuffled from one foster home to the next, who is also determined to be the best Cub Scout ever. Pearl Bartlett (Katherine Helmond) is a hard-working executive who dislikes children, but she must take on a troop of Cub Scouts and become a den mother to save her job. Somewhere along the way, Joey teaches Pearl the true meaning of caring.