
- How will Sam be now that his soul is back?
- How long with the wall stay up?
- What do the Winchesters need to discover about souls?
- Will Adam (and Michael) just have to stay in the cage for good?

- Without a soul, Sam really would do anything.
- Dean learned a lesson about the natural order of things, and how dangerous it really is to disrupt it.
- Death has a soft spot for Dean.

- Death brings Dean a bacon hot dog from a stand in Los Angeles. This is likely a joke about the fact that LAPD has been cracking down on illegal food carts selling bacon-wrapped hot dogs, some of which have given people food poisoning.

- When Sam uses an axe on the closet door to get at Bobby, Bobby tells him not to say "Her's Johnny!" This is a reference to a famous scene in The Shining (1980) in which Jack Nicholson says this line through an axe-battered door. In this movie this was itself an allusion to the introduction of Johnny Carson, host of The Tonight Show.
- "Appointment in Samarra" is old tale, retold in 1933 by Somerset Maugham (to read it, click on "More Allusions" below), and then taken as the title of John O'Hara's first novel in 1934.


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The Winchesters head to a small town to investigate the abduction of virgins and find -- a dragon! Scales, wings, a lair -- the whole nine yards. As they try to figure out why the creature has surfaced now, they also are dealing with the return of Sam's soul and some revelations about what's going on with souls in general.