[s11e1] Out Of The Darkness, Into The Fire Page

They climbed back into the car, the rumble of the engine the only familiar thing left in a world that had suddenly turned alien. As they drove toward the nearest town, Superior, Nebraska, the signs of the "Darkness" began to manifest. It wasn't monsters in the shadows; it was a sickness.

"We didn't have a choice," Dean snapped, though the conviction was hollow. [S11E1] Out of the Darkness, Into the Fire

If you want to explore more about this specific era of the show: The psychological bond between Sam’s secret struggle with the Rabid infection Castiel’s torture at the hands of the angels They climbed back into the car, the rumble

The black smoke that had roared across the landscape was gone, leaving behind a stillness that felt like a trap. Dean wiped a smear of blood from his forehead, his eyes darting to the tree line. He could still feel the phantom touch of the woman in the black dress, the Mark of Cain gone from his arm but the weight of her words settled deep in his marrow. "Sam," Dean rasped, his voice cracking. "You okay?" "We didn't have a choice," Dean snapped, though

Suddenly, a woman emerged from the ditch, her movements jerky and unnatural. Her skin was a map of dark lines, and when she looked at them, there was no humanity left—only a primal, screaming hunger. She lunged.

As Sam stayed behind to draw the Rabids away, using himself as bait to find a cure for the infection spreading through his own veins, Dean escorted Jenna and the infant to safety.