If only it had a real plot beyond "YED possesses Veidt, spawn of Cthullhu attack NYC, Winchester brothers & Dan/Rorschach/Laurie hijinks ensue, Cthullhu spawn are magically defeated somehow, IDK, Sam & Dean drive off into the sunset at the end with their usual monster-fighting arsenal augmented by a pair of Dan's night-vision goggles and a grappling gun."