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.
Not streaming on a subscription service in the US right now.
Starring Kevin Conroy, Melissa Rauch, Paget Brewster, Loren Lester, Kevin Michael Richardson, Eric Bauza, Trevor Devall, John DiMaggio, Robin Atkin Downes, Rob Paulsen