The fourth volume of Brian Buccellato and Francis Manapul's New 52 breakout
hit - The Flash! A mysterious and powerful Speed-Force killer has
left a trail of bodies in his wake and only Barry has the power to stop him. But
when the killer stays one step ahead, Barry finds himself face-to-face with the
Teen Titans and Kid Flash for the first time. All this will lead to a
confrontation with the Flash's most deadly foe, The Reverse Flash! 
This final volume of Francis Manapul and Brian Buccellato's mammoth run on
the Scarlet Speedster collects The Flash #20-25 and Reverse Flash
#23.2.