Kaiyo is now five years old and a thousand pounds. Tracking down what he thinks to be a bear poacher, Kaiyo is shot and pursued. But Kaiyo escapes and makes his way home to get his brother's help to go back and take out his attacker. At the same time, Kaiyo's human father, Sam McLeod, is told by a strange and ominous man that Kaiyo will be destroyed and is warned not to interfere. But Kaiyo and the Mcleods will not be intimidated. They soon learn...