Synopsis: Batman met Gordon on the rooftop - the Riddler was loose. A girl bearing the first clue fell to her death in front of them. Riddler toyed with him at the first location and escaped while Batman saved a would-be victim. He then kidnapped four newborns and waited for Batman at a blood bank. Riddler again escaped, leaving Batman covered in blood. He recovered the first baby, along with a riddle. It led him to a graveyard where a corpse rose from its grave.
Batman defeated Riddler's "corpses," actually robots and a man in makeup. Riddler passed on an opportunity to kill the Batman, who then recovered the second infant (and another riddle). At the next location, Batman was attacked by three pit bull terriers. Their riddle led him into the sewers where Batman found the third child choking on a ping-pong ball.
Batman got the baby to the hospital and went to the next location (he discovered the patter on a question mark over Gotham leading him to the final destinations), an amusement park. Riddler captured him and told him about a journal he'd found. Batman, through the Riddler's actions, had prepared himself for a black magic human sacrifice. Riddler was about to conjure up his very own demon slave. Before the sacrifice could take place, the demon scared Riddler away. Alfred showed up in time to save Batman from his tomb below the burning building.