Thus , a terrible war breaks out between the eight animal tribes over the powerful Chi , a substance that can both sustain life and destroy it .
His former best friend , Prince Laval of the Lion Tribe , becomes his worst enemy .
A terrible war breaks out between the eight animal tribes over the powerful Chi , a substance that can both sustain life and destroy it .
His former best friend , Prince Laval of the Lion Tribe , becomes his worst enemy .