In a major subplot, Joe and Cisco reinvestigate the night Barry's mother was killed. Using holographic reconstructions, they discover blood splatter behind wallpaper at Barry's childhood home. DNA testing reveals that the blood belongs to Barry as an adult
The screen cut to black. A timer appeared in the center: . It began counting down.
The glowing text flickered on the old CRT monitor in the back of the electronics repair shop. Lucas blinked, rubbing his tired eyes. He had been working on the restoration of this particular vintage television set for three days. It was a model that shouldn't have existed—a hybrid of 90s bulk and 50s wood paneling.