Thera is a three-thousand-year-old Water Nymph who is fated for the Cabinet of Idols. After she was marked by the Staff of Zeus, she teams up with some misfit myths, an immortal and a couple of humans and ventures out into the world to try and stop the inevitable. However, along the way, the group discovers who is behind the Cabinet of Idols and the plot to gather strong legends to unlock a prison which will unleash something that would topple the world. Even though Thera's fate is sealed, it doesn't mean she can prepare the others to fight in her stead when the time comes.