There’s a moment in “The Watchers on the Wall” when all hope seems truly lost. The Wildlings have breached Castle Black, and the Night’s Watch is just barely fighting back. Then, the tide turns. Jon Snow descends down from the top of the mighty Wall and lunges directly into the thick of the fighting as the camera shifts seamlessly into an unbroken 360-degree shot, revealing the gruesome battle playing out across the castle courtyard.
