Superman Becomes A Zombie (DCeased)
Superman gets infected and slowly turns into an anti-life equation zombie after he flew straight into the Flash and killing him. Some of Barry Allen’s bones managed to pierce Superman’s skin. With only a few seconds remaining before he turned, Superman asked Kid Flash to connect his family into the Speed Force so that he could say his goodbyes, making those precious seconds turn into at least minutes.
From – DCeased #5