JUSTICE LEAGUE: The Flash
[Source: Syfy] A normal man by the name of Barry Allen gets hit by lightning and doused in chemicals. Everything an old-school hero needs to start mutating into a superhero. Aside from super speed, there are so many other powers the Flash develops in the comics, moving through walls, and time travel for example. It looks as though from this snippet of video we see here that Bruce Wayne is trying to understand Barry's extradimensional abilities.