JimJim and his mouse family live near Sylvan Lake, high in the Rocky Mountains. JimJim and his brother and sisters must overcome the dangers of rainstorms, being lost, escaping Mr. Owl, dodging Rusty the Hawk, and dealing with Mr. Black Bear. Throughout their adventures is the chance to achieve greatness as a mouse and claiming their second name. Follow JimJim and his three siblings on their journey to survive the wilderness with the help of their new friends.