Riley (Marc Blucas) is acting strangely around Buffy (Sarah Michelle Gellar) and catching her with Spike (James Marsters) -- or Hostile 17 -- makes him even more antagonistic. Meanwhile, Adam (George Hertzberg) kills Dr. Walsh (Lindsay Crouse) and leaves the Initiative compound. Later, Buffy is confronted by Riley with the news of Dr. Walsh's death. Then, while searching for Adam, Buffy, and Xander (Nicholas Brendon) sneak into the Initiative compound and discover that drugs were being secretly given to the commandos and Riley's in withdrawal. Riley confronts Adam who seriously wounds him. Elsewhere, Willow (Alyson Hannigan) attempts to perform a spell with Tara (Amber Benson) to magically locate all of the demons in Sunnydale. Tara sabotages the spell while Willow's eyes are closed. ~ Rovi