If you need a reminder of how much hell the Winchester brothers have gone through, well, then check out this video the recaps bits from each season. Oh Sam and Dean, how you’ve grown.
http://youtu.be/bnIMofpTew0
Sam (Jared Padalecki) and Dean (Jensen Ackles) have spent the last eight years battling the things that go bump in the night. Over the years, and occasionally alongside the fallen angel Castiel (Misha Collins), and the King of Hell, Crowley (Mark A. Sheppard), the Winchesters have straddled the line between good and evil.
And check out these official images for each season: