Details:
In the orphanage underground where she lives, Celestine, a young mouse, has been taught that bears are nasty and evil…not the kind of folks one should associate with. As she prepares to follow the typical rodent trajectory of becoming a dentist, Celestine (who’d much rather be an artist) is tasked with stealthily venturing to the outside world where she must collect the lost baby teeth of bear cubs and bring them back for study. On one such outing, she is discovered by a family of bears and chased into the outside world. She spends a tense night of fear in a trash can and meets Ernest, a unique bear who might just change her ideas about how well mice and bears can get along.