When the evil warrior wizard Draconus and his minions are accidentally unleashed upon the kingdom of Elnor, a mystical being known as Othor gathers a team of resilient teens to battle the forces of evil and keep their world safe. In order to defeat Draconus and his army of underworld creatures, the teens will need to become the Powers Rangers: Medieval Knights!

The Animorphs and Ax have been fighting the Yeerks for awhile now. Their only hope is that someday the Andalites will come to Earth and help them destroy the Yeerks. But what if the Andalites did come? Would they bring the salvation they hope for?