Batman and Nightwing are forced to team with the Joker's sometimes-girlfriend Harley Quinn to stop a global threat brought about by Poison Ivy and Jason Woodrue, the Floronic Man.
Kevin Conroy, Melissa Rauch, Paget Brewster, Loren Lester, Kevin Michael Richardson, Eric Bauza, Trevor Devall, John DiMaggio, Robin Atkin Downes, Rob Paulsen, Mindy Sterling, Bruce Timm
