This week's challenge is now open! Episode 6.17 I Like To Watch. AKA "who gets to comfort Warrick when Tina leaves him?" week. =) This challenge will run until next week's episode (a rerun) airs, at which point a new challenge for a Season 1-5 episode will go up.
If you come up with plot bunnies that you decide not to use and would like to offer them up for adoption, feel free to post them in a comment here.