"No Man's Land" part 23 and "Fruit of the Earth" part 2, continued from BATMAN: SHADOW OF THE BAT #88. After battling to enter Robinson Park, Batman and Robin must fight Clayface to free the enslaved Poison Ivy and gain access to a Batcave buried deep within Ivy's paradise. Continued in DETECTIVE COMICS (1937-2011) #735.
Clayface had been holding Ivy, forcing her to grow food for him, and enslaving the children she'd been caring for. Robin began getting the children to safety; Batman began attempting to get Ivy free from the brick-like clay that held her. As Clayface returned, Robin set off explosives that freed Ivy. Huntress joined Pettit's group.