يتحدث المسلسل عن بنت صغيرة تدعى ماشا تعيش مع دب و تسميه سيد الدب يخوضون مغامرات رائعة ومواقف مضحكة، ويشاركهم أحيانا السيد أرنوب
Masha is an energetic three-year-old who can’t seem to keep herself out of trouble. Bear is a warm, fatherly figure that does his best to guide his friend and keep her from harm, often ending up the unintended victim of her misadventures.