Emperor Penguins from Antarctica each express their true love with a special heartsong of their own that expresses their very being. However, the misfit Mumble cannot sing. Instead he has an extraordinary talent to tap dance with almost magical energy and expression. Nevertheless, the leadership of the colony fearfully blames the young penguin's unorthodox ways for the lean fishing that threatens them all. Defiant in the face of unjust rejection,...

Mumble, The Master of Tap, has a problem because his tiny son, Erik, is choreo-phobic. Reluctant to dance, Erik runs away and encounters The Mighty Sven, a penguin who can fly! Mumble has no hope of competing with this charismatic new role model. But things get worse when the world is shaken by powerful forces. Erik learns of his father's "guts and grit" as Mumble brings together the penguin nations and all manner of fabulous creatures.