Cassie asks Adam for help when she wants to look into her father's past, and their search leads them to an eerily familiar place. It also rekindles an old flame when Adam, thrilled to be spending time with Cassie again, asks her to the Fire and Ice dance. But because of her friendship with Diana, Cassie is forced to give a surprising response. In an effort to be a better father, Ethan (recurring guest star ADAM HARRINGTON - Dexter) offers to chaperone the dance, much to Adam's dismay.