It's fitting that "The Flash" didn't take long to establish itself as a hit. The first episode of the show, which introduced crime-scene technician Barry Allen and his newfound need for speed, was The CW's most-watched premiere in five years.

In Tuesday's episode of the comic-book drama, Allen runs into a brick wall.

In this exclusive clip from Tuesday's episode, "Fastest Man Alive," Barry and the team at S.T.A.R. Labs discuss his superpowers with Detective Joe West, the man who raised Barry after his mother was murdered. Let's just say that the conversation with West (Jesse L. Martin) quickly escalates.

For more on what to expect this season from "The Flash" and "Arrow," check out what executive producers Greg Berlanti and Andrew Kreisberg had to say about the upcoming seasons of both CW shows.