Jay Garrick tells Barry Allen about the old times on Earth-2 with the Justice Society of America, commonly known as the JSA. He had a lot of friends there, but most of them were gone now. But not all of them died in the Crisis. Some died battling very dangerous creatures which cannot be understood by most humans- reapers. They came to judge and destroy the world, and wipe out the the false gods, the JSA, so everybody would worship them. And Jay believes they are connected to the Gods and Monsters that have been attacking Earth-1.