Prince Rupert and Princess Julia have already saved the Forest Kingdom twice. Thus, they earned the right to live happily ever after. But the rising of a blue moon is approaching...Hawk and Fisher, known for maintaining peace in Haven for many years, retired, deciding that they were too old to be heroes. Now they run the Hero Academy they created, training young, up-and-coming heroes. But legends don't die or retire. Hawk and Fisher have adult children - Jack and Gillian - Prince Demon - an old enemy of the Forest Kingdom threatens to kidnap them. He challenges Hawk and Fisher to a fight for their lives. However, the heroes suspect another motive for the kidnapping, which is connected to a case that happened in Haven many years ago - a case that they never wanted to talk about. Hawk and Fisher have no choice but to return to the Forest Kingdom. This is the last story about them, a legend of the kind that happens only once - during the rising of the Blue Moon...