There has been a prison break at Arkham, again, and Poison Ivy, along with most of the other inmates have escaped. Ivy ran towards Gotham Park to hide when she heard sirens, she looked around franticly for a place to hide, a warehouse caught her eye and she sprinted for it, she ran inside an closed the door. She took a small rest then started looking for something to lock the doors, the warehouse was covered in vines.
"Grow my babies" she whispered as she stroked a vine, suddenly it grew twice the size, she pointed at the doors and suddenly all the vines grew in size and headed for the doors to lock them shut. One vine on the second floor brushed passed a briefcase knocking it down to the first floor, right at Ivy's feet.