Fraternal twins Yuri and Chelinka live happily with their father in a small village, but their happiness comes to an abrupt end with the arrival of an ancient evil. Now, with his family shattered, Yuri begins to train so that he will be strong enough to fight when the evil returns. Armed only with their determination, courage, and Chelinka’s magic crystal, these brave twins set out on their quest to find their lost friends, avenge their family, and heal their world.