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Two years ago, Barry Allen and Batman worked together to save themselves from villains like Gorilla Grodd, Captain Boomerang, and Mirror Master. Two years later, the Rogues (consisting of Heat Wave, Weather Wizard and Captain Cold), Jay Garrick and K... (more)id Flash are depressed over Barry Allen's apparent death. However, after seeing the mysterious ghost of Barry Allen, Batman and the two Flashes use the help of the Cosmic treadmill to travel to the 25th century, where Professor Zoom has taken over as the conqueror.