Storm on the Ice

Thorbix and Unelina are polar bear cubs. Their mom was a mortal bear. She died giving birth. Their dad can never meet them. He's a minor ice bear god. Given to Adana, a calm-souled bear, they were intended to be raised as normal bears. But their evil uncle, Keto, has recruited an army of blood-stained bears who's only intention is to kill the cubs that may threaten his rule.
Joined by four other polar bear cubs, Thorbix and Unelina must go on a quest to save themselves- and the entire bear kingdom.