Demons are just demons... right? That's what the Winchesters thought until a case sends them off in search of what Bobby insists is called a Shax demon. Begrudgingly the two of them, accompanied by their- the, because they're all just friends... obviously- angels, set off towards New York to investigate. The Shadowhunters arrive just a bit too late. Well, they thought so, anyway. They join the fight, expecting the men to be goners when two others appear from out of knowhere. Two completely different worlds colliding. They're all at a bit of a struggle with each other when things take an even bigger turn for the worst. None of them are sure anything will work out. At this point, they just hope Magnus and Gabriel won't start another war.