Caitlin behind bars - The Flash Season 3 Episode 13

This isn't the first time Caitlin's been Grodd's prisoner. She's managed to talk the gorilla down in the past. Will she succeed once again?
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Cellmates - The Flash Season 3 Episode 13

Who's on the other end of that call, Cisco? Is it possible to communicate between earths via cell phone? Probably not. Maybe Cisco's taking notes for H.R.'s book.
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Tourist Trap - The Flash Season 3 Episode 13

On the bright side, Julian gets to tag along on the trip to Earth-2. Unfortunately, things aren't going well for Team Flash.
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Unimpressed Cisco - The Flash Season 3 Episode 13

Cisco doesn't seem to be enjoying Earth-2 as much as he did on his first trip. Can he vibe his way out of prison?
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Harry's Back! - The Flash Season 3 Episode 13

It's been a while since we've seen the Earth-2 version of Harrison Wells. Too bad the reunion's happening in Grodd's jail.
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Caged Harry - The Flash

Why did Grodd target Harry? How long has he been in a cage? We have so many questions!
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The Flash Season 3 Episode 13 Quotes

Julian: Grodd? The telepathic gorilla? Where are you going? Are you going to Planet of the Apes?
Barry: No. It's just a city of them. Will you cover for me?
Julian: Are you going to the Planet of the Apes?
Barry: It's not Planet of the Apes.

Wally: He's Harry's replacement.
H.R.: Some would say improvement.
Cisco: Um, this is Harry's daughter.
H.R.: Yeah.
Cisco: He's been kidnapped.
H.R.: I didn't know. I'm so sorry.
Jesse: Sorry about that.
H.R.: I'm sorry, too. Sorry I took the smile from your face.