Set midway through the Supernatural's Season Two premiere episode "In My Time Of Dying", Rage And Grace swings into Alternate Universe territory with a new twist on what could have been, had the Yellow Eyed Demon been a little more devious and John Winchester just a bit more desperate.

Determined to find a way to save the life of his oldest son, Dean, following a grim accident, John Winchester summons the YED in the boiler room of a hospital in Sioux Falls, South Dakota, prepared to hand over the Colt in exchange for Dean's life. However, like most Demons, Yellow Eyes isn't one to make a deal so cut and dried. He vows that he can - and will - bring John's son back from Death's door, but first the Winchester Patriarch must 'sweeten the pot'.

With a million possibilities, ranging from his life to the life of his youngest son, John - stoic in his demeanor - asks what YED's terms are...and is horrified to find it goes against everything he spent the last twenty two years fighting for.

To spare Dean's life, John Winchester must assist YED in achieving his next goal: Unlocking the Devil's Gate in Wyoming, thereby releasing an army of Demon soldiers as well as the trapped Lilith, who was needed to complete the final phase of a most sinister plan. With a Reaper close to luring Dean to his demise, John agrees, slipping out of the hospital without a word to anyone - not even his youngest son, Sam.

With the Devil's Gate now open, a pall of darkness has fallen on our times. Demons en masse are roaming the Earth. Lilith is furtively seeking the 66 Seals to open them and release Lucifer. The Four Horsemen of the Apocalypse have been spotted and one by one cities are beginning to crumble, with the once dead walking amongst the shadows.

And in Heaven's response, seven Angels were heard blowing seven trumpets and the Apocalypse was upon us.