 Kelly, bitter because she is being abused by her cellmate, expresses her hope that Nick dies, but also reveals that she used to work in horticulture.At the crime scene, Warrick loses his temper at Greg due to the lack of progress, and kicks a bucket of liquid at him.When Catherine leaves to talk to Warrick, Greg notices that the liquid is sinking into the ground in some places on the floor, and the team frantically begin to dig.