Protagonists: Sam, Dean, Jack, Castiel
Major Antagonists: The Empty
FEATURED CREATURES: Nephilim, Angel, Shapeshifter, Celestial Being
Over Plot: Boys deal with how to handle Jack and how to get Mom back
Major Character Deaths: None
Minor Deaths: guy stabbed by dead wife, woman killed in car, Driscoll (revealed through exposition)
Notes: First appearance of the Empty, Sam kills a Shifter
Episode Bystander Kill Count: 3 humans
Killed/Destroyed/Banished Count: 1 Shapeshifter