For being one of DC's most important heroes, we sure haven't given the Flash much attention.
We tried to remedy that by reading a classic Mark Waid story from the early 90s called The Return of Barry Allen, a story that manages to encompass every generation of the Flash.
You'll get the modern Flash, Wally West. You’ll get the Golden Age Flash, Jay Garrick. And, of course, you'll get the return of the titular Silver Age Flash… unless there's a plot twist of some sort… but don't worry, I'm sure that won't happen…