After a series of random robberies, the FLASH's head is whirling at super-speed. He wants to take down this out-of-sight outlaw, but the confusing clues aren't adding up. For one man, however, each piece is part of a colossal comeback. The super-villain CAPTAIN BOOMERANG is out to seek revenge against the SCARLET SPEEDSTER! But the super hero knows "what goes around comes around," and he's not about to let this crazy crook spin out of control.