OUR WORLDS AT WAR, Part 18. It''s time to call in the reserves...all of them! When President Luthor sends the JSA to take out Imperiex''s base, a battleship the size of Jupiter, Sand fills out the ranks with Power Girl, The Ray, the Shining Knight, and a dozen others. But the horrible secret of Imperiex''s power may prove too much for the JSA allies to handle.