The Flash Season 1 is off and running. Really, really fast.

On The Flash Season 1 Episode 1, viewers were (re)introduced to Barry Allen, as Grant Gustin brought this iconic comic book character to life on a universally-praised premiere.

We delved into the character's unfortunate past, which includes a dead mother and an imprisoned father, learning what made him into the lab geek with a golden heart that he is today. 

What can fans expect from the "Crimson Angel" as Season 1 forges ahead?

The CW has unveiled an extended trailer that doesn't just give us a look at The Flash Season 1 Episode 2, it also teases a number of developments to come, such as the debut of Wentworth Miller as Captain Cold.

Yes, folks, The Streak is alive. Get an idea of where he's headed now:

You can watch The Flash online if you missed the premiere and you can get to know all the key players via the following photo gallery:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.