Over the course of three seasons, Barrys (Grant Gustin) actions have led to devastating consequences.

I can agree with that in a way, Gustin tells EW.

We always look atThe FlashasThe Flash Begins, executive producer Andrew Kreisberg says.

Attack on Central City

Credit: Bettina Strauss/The CW

Part of the heros journey is screwing up really badly, Kreisberg continues.

The end of last season was about Barry screwing up really badly.

Its what you do then thats what separates you from whether youre a hero or a villain.

Is he realizing that with great power comes great responsibility, as another superhero so eloquently said?

Thats really Barrys lesson for this season that he takes forward to make him a better hero.

Still, Gustin believes Barry has certainly come a long way since the shows debut.

I think hes matured a lot over the past three years.

The Flashairs Tuesdays at 8 p.m.

ET on The CW.