In this episode the heroes of New Arcadia face two challenges: the Crystal Children and the occult mystery in Fiddler's Green. The cult known as the Crystal Children is led by a powerful metahuman with a unique ability that makes direct confrontations with him impossible. How will they bring this elusive foe to justice? When the other heroes delve into the mystery of the ghost lights of Fiddler's Green, they find a dire plot that must be stopped. However, this is easier said than done.