After accidentally helping bank robbers with some stray magic - and then helping the Atom magically capture said thieves, Zatanna explains how she is searching for her father Zatara. Believing she has located him in a sub-atomic world in the pages of a magical book, Zatanna eventually persuades the tiny titan to join her in shrinking to sub atomic size in order to help her in her search.

Finding themselves on a world of magic, the heroes are confronted by the man known only as the Druid, who engages them in battle in his ancient castle. Eventually, Zatanna learns that the Druid has exiled her father to another world - but he refuses to say which one. Disappointed, but determined to move on, Zatanna thanks the Atom and moves on.