Batman and Harley Quinn

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.

Batman & Mr. Freeze: SubZero

When Mr. Freeze kidnaps Barbara Gordon, as an involuntary organ donor to save his dying wife, Batman and Robin must find her before the operation can begin.