Last night's all-new 'Supernatural' episode "The Great Escapist" firmly set the course for the final episodes of the season, returning to the demon/angel tablet storylines that have pervaded the road so far. Thanks to their new friend Metatron (Curtis Armstrong), the Winchesters have a clearer picture of the third trial to close the gates of Hell, but will Sam survive, or be forced to make a "Sacrifice" by season's end? Check out the latest photos from the 'Supernatural' season finale "Sacrifice" inside!

As tends to be the case around the Winchester brothers, Sam and Dean may face some grave consequences going into 'Supernatural's season 8 finale "Sacrifice," airing on May 15. Sam's deteriorating health from completing the trials will surely come to head, but will Dean be pressed to make a "Sacrifice" of his own in order to close the gates of Hell forever?

The CW has released the full set of photos from the May 15 finale, which see angels arguing left and right between Castiel, Naomi (Amanda Tapping), Metatron and others, while Sam continues to suffer the effects of the trials in quiet moments with Dean. From The CW's official press description:

WHAT MUST SAM, DEAN AND CASTIEL SACRIFICE TO FOREVER SEAL HELL? — With Crowley (guest star Mark Sheppard) poised to undo all the good they’ve ever done as hunters, Sam (Jared Padalecki) and Dean (Jensen Ackles) find themselves cornered. But with Kevin’s (guest star Osric Chau) help, the Winchester brothers bound into one last play against The Demon King. Metatron (guest star Curtis Armstrong) initiates a plan with Castiel (Misha Collins) to take on Naomi (guest star Amanda Tapping) and the bureaucracy of Heaven.

So, what do we think? Will one, or both of the Winchesters end up making a "Sacrifice" in the finale? What do you hope to see from the final episodes of the season? Check out the 'Supernatural' season 8 finale photos below, and give us your predictions in the comments!

Supernatural Season Finale Sacrifice Photos
The CW
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Supernatural Season Finale Sacrifice Photos
The CW
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Supernatural Season Finale Sacrifice Photos
The CW
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Supernatural Season Finale Sacrifice Photos
The CW
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Supernatural Season Finale Sacrifice Photos
The CW
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Supernatural Season Finale Sacrifice Photos
The CW
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Supernatural Season Finale Sacrifice Photos
The CW
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Supernatural Season Finale Sacrifice Photos
The CW
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Supernatural Season Finale Sacrifice Photos
The CW
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Supernatural Season Finale Sacrifice Photos
The CW
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Supernatural Season Finale Sacrifice Photos
The CW
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