This season can only be described as epic.
Season Three left Dean in Hell, subject to forty years of torture. Thirty years on the rack, ten years wielding the knife himself. Safe to say, when he returns top side he has a few issues.
For Sam it is the guilt, the helplessness, the realisation that Dean was burning away down there and he couldn't lift a finger to help. So when Season Four returns we see a Sam desperate for that power, desperate for revenge.
And thus the wedge is driven. Add in the arrival of some very well written, well acted angels (yes, angels), demons and an impending apocalypse the Winchester brothers don't fair well in this Fourth Season.
And that is the beauty of it. The angst is dialed up to twelve, the laughs are instant classics and the tension palpable. This is a brilliant season of television.
The DVD's extras are also juicy. There is a collection of very interesting features about mythology and religion – Heaven, Hell and everything in between – with interviews from the crew and religious experts. We also have some great deleted scenes and of course, the gag reel is a hilarious must.
This is the season Supernatural gained the love of the critics, arguably the season it offically gained its cult status.
Move over Buffy, move over X-Files, it is the story of two brothers and a car that everyone is talking about.