Watch The Flash season 2 episode 12 online: Candice Patton talks Earth 2's Iris and Barry relationship

Barry Allen and Harrison Wells will work together to close the breaches in Central City and Iris West will be seen trying to help Wally West in the upcoming chapter of The Flash season 2. Episode 12, titled Fast Lane, will air this Tuesday, 2 February, at 8pm EST on The CW Network.

The official synopsis reads as follows:

Barry (Grant Gustin) teams up with Wells (Tom Cavanagh) to figure out a way to close the breaches, but they are distracted by a meta-human nicknamed Tar Pit (guest star Marco Grazzini) who can transform into liquid asphalt. Iris (Candice Patton) is concerned for Wally's (Keiynan Lonsdale) safety after she finds out about his drag racing hobby. When he refuses to stop she makes a bold move that puts her in danger.

Click here to watch the episode online on The CW website in the US. Fast Lane will feature Tar Pit, a new metahuman attacking innocent people in Central City. Also, Iris West will land in trouble while trying to help her brother Wally, while Zoom will make an appearance in the episode.

A scene from The Flash season 2's trailer shows Barry Allen with Iris West TheCW

Candice Patton spoke to Entertainment Weekly about the relationship between Earth 2's Barry Allen and Iris West. The Flash actress said, "From what I'm seeing, the relationship between Barry and Iris will be strong on every Earth, to some degree. It's safe to say that there is some sort of relationship-friendship between Barry and Iris on Earth-2. I won't say what that is or how that looks, but it's safe to say they are friends and close to some degree no matter where we find them."

The actress also talked about the difference between Iris West and her Earth-2 doppelgänger. "She's quite different. She's similar in a lot of ways, but the way that I can say that she's most different to Earth-1 Iris is that she's really tough. I know Iris form Earth-1 is pretty tough, but this version is really hard and tough."

The 27-year-old actor revealed that it was fun to play a different version of Iris. "She's less emotionally penetrable than the Earth-1 version of herself, which was really cool to play. It was really fun to play a different version. As an actor, you end up on a series, and you think you're going to play one character for however long. It's nice that we have these doppelgängers and we get to play a little bit."