Episode Description: Beware, spoilers! To read - hover over the text.
Dean tries to rescue jenna, the nurse who was in a dangerous situation after the falling of Darkness. Meanwhile, Sam arrives in a dark city where the inhabitants were under the influence of poisonous gas, which turns them into monsters. Sam believes that with this case he can't help himself and says to his brother to help jenna, but soon realizes that alone it does not work.