Kathryn Kirkpatrick

Dexter discovers that the man responsible for his mother's murder is still alive. When he tells Lila, she persuades him that confronting his mother's murderer will be a good step on the road to his addiction recovery.

Marissa attempts to fix her relationship with Ryan.

Grissom returns from his sabbatical; Keppler tries to conceal his ties to a double-murder case that he and his colleagues are investigating.

Seeing a future where nearly everyone has abilities and a world destined for destruction, Peter takes on a dark, unwieldy ability to save the world in a gamble that it won't destroy him and everything he loves first. Hiro and Ando set out to uncover the identity of the villain who hired the Speedster, and after the bloodbath at the bank, HRG resolves to get rid of his new partner.