Eobard Thawne found a time capsule in the 25th century containing a costume of the Flash and with a Tachyon device amplified the suit's speed energy, giving himself speedster abilities. Reversing the costume's colors, he adopted the moniker of "Professor Zoom the Reverse-Flash" and went on a crime spree. However, the time capsule also contained an atomic clock which, due to the effects of time travel, altered into an atomic bomb. To prevent its detonation, Barry Allen pursued and defeated Zoom, hoping he knew where the clock was. He did not, but Barry later found the clock, detonated it safely, and destroyed Thawne's costume.