Carli Bear, twin sister of Cubbacius B. Bear, seems shy but learns that this is a result of her insecurities about her self-worth. Carli decides other children may feel the same way so she sets out on a mission of self-discovery.

As dreams of becoming a star athlete motivate her to learn the skills and dedication essential for success, Carli overcomes her shyness. She shares her brothers enthusiasm for playing with other animals and children and discovers her new fitness activities really help her have more fun playing with their friends.

Carli is always thoughtful and spirited and ready to join her brother, Cubbacius, in every adventure. Carli experiences bad (fur¦ days just like any young girl.