Caught in a dangerous situation, Sam and Dean only have each other to rely on. Meanwhile, the fight between the American Hunters and the British Hunters comes to a head.

Sam and Dean are alarmed when they learn hunters are being killed by suspicious “accidents” all over the country. They decide it is best to find Mary and make sure…

Sam and Dean get a lead on Kelly Kline’s whereabouts. Mick drops by the bunker unexpectedly and decides to join the hunt.

While battling a demon, Dean is electrocuted, resulting in permanent damage to his heart and leaving him with only a couple of months to live. A despondent Sam searches desperately…