Sneak Peek: Friday's <i>Supernatural</i> -- 'All Dogs Go To Heaven'

If, after the big revelations of last week's episode of Supernatural, you wondered where the Winchester brothers were headed, the answer apparently is ... back on the road.

In The CW's preview clip for Friday's episode, "All Dogs Go to Heaven," a soulless Sam (Jared Padalecki) and an untrusting Dean (Jensen Ackles) set off on a case as they grapple with what it means to be working for the demon Crowley (Mark Sheppard), newly crowned king of Hell.

Here's the official synopsis for the episode:

Dean (Jensen Ackles) and Sam (Jared Padalecki) investigate what seems to be a werewolf killing but turns out to be a skinwalker (guest star Andrew Rothenberg) posing as a family dog who is taking revenge on his owner’s enemies.

After capturing the dog, he turns human and tells Sam and Dean that an Alpha skinwalker has created many sleeper cells that will rise on his command and kill their families. The only way to stop the mass murders is to find and kill the Alpha.

Supernatural airs Fridays at 9 p.m. EST/PST. You can check out the TV spot for "All Dogs Go to Heaven" below.

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