After being defeated (and Gotham City being defrosted), Mr. Freeze gives Batman the cure to Alfred's disease. Freeze is taken back to Arkham Asylum where he continues his research. His cell mate is Poison Ivy, who tried to kill his frozen wife and obviously Freeze is a tad bit pissed at Ivy ("it's going to be a long winter!"). Batman and Robin now have the aid of Batgirl (Alfred's niece, Barbara).