Written by J. MICHAEL STRACZYNSKI & CHRIS ROBERSON Art by EDDY BARROWS & J.P. MAYER Cover by JOHN CASSADAY 1:10 Variant cover by ADAM HUGHES Superman visits Boulder, Colorado, as 'Grounded' races forward! And speaking of racing, here comes The Flash! The Scarlet Speedster has made a strange discovery that relates to Superman, so he tracks The Man of Steel down in the Centennial State to get some answers! What did Flash discover? Well, let's just say there's a reason Superman isn't very happy to see him? Retailers please note: This issue will ship with two covers. Please see the Previews Order Form for more information. On sale MARCH 16 ? 32 pg, FC