Sprague Grayden does not appear in this episode.
We learn that Lt. Avery had a fiance, a fellow cop, who was killed in the line of duty.
Lt. Avery: Oh, come on. You've never come clean with me, with any of us, about your amnesia, where you come from. The time for secrets is over.
Mourner: Cheater Cheater Pumpkin Eater. Next time, no help.
Digger: What, are you back for seconds so quick? Look, I know this is a crisis situation but you got to slow down man. I don't want to run out here.