After Jack Frost is told by Pitch that both their powers hold dark elements, he struggles to understand the dual nature of his gift which is able to bring cheer to children and take lives. For a time Jack lives a cold and depressed life as he is unable to accept his good qualities in light of the bad ones. Meanwhile, the boogyman Pitch finds himself still struggling to be accepted and respected as one of the necessary elements of life. By the end, both find a sort of peace.
Based on the movie Rise of the Guardians.