Alert! The ice floe is out of control! The ice is melting at breakneck speed! The North Pole is getting hot for Ob, a shy bespectacled bear, as well as for all the animals around him. To survive, there are two possibilities: flee on the back of an iceberg or resist the madness of the despicable Yamal, determined to turn the Arctic into a new highway.
In this unequal fight, Ob will find allies: a brilliant Sicilian inventor, a very-very-very touchy witch, a walrus surfer and especially Kara, a young Inuit who has only one ear left and unequaled courage. Join the battle of the ice!