According to the customs of Antarctic penguins, each penguin has to express his love to his mate by singing. But Mumble can't find his soul mate because he can't sing, despite having a great talent for tap dancing. Mumble tries to convince the elders to change their habits.
In this sequel, the penguin Mumble gives birth to a small penguin Erik, who does not like dancing and singing as his father, but wishes to fly. Many adventures happen when they are attacked by strange forces, but by uniting they can overcome the difficulties.