The Flash — “Monster” — Image FLA305a_0077b.jpg — Pictured: Candice Patton as Iris West — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Monster” — Image FLA305a_0092b.jpg — Pictured (L-R): Grant Gustin as The Flash and Candice Patton as Iris West — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Monster” — Image FLA305a_0107b.jpg — Pictured: Grant Gustin as The Flash — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Monster” — Image FLA305a_0120b.jpg — Pictured: Grant Gustin as The Flash — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Monster” — Image FLA305a_0151b.jpg — Pictured: Grant Gustin as The Flash — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Monster” — Image FLA305b_0019b.jpg — Pictured: Danielle Panabaker as Caitlin Snow — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Monster” — Image FLA305b_0040b.jpg — Pictured: Susan Walters as Dr. Tannhauser — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Monster” — Image FLA305b_0131b2.jpg — Pictured: Susan Walters as Dr. Tannhauser — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Monster” — Image FLA305b_0180b.jpg — Pictured (L-R): Susan Walters as Dr. Tannhauser and Danielle Panabaker as Caitlin Snow — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Monster” — Image FLA305b_0245b.jpg — Pictured: Danielle Panabaker as Caitlin Snow — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Monster” — Image FLA305b_0286b.jpg — Pictured: Danielle Panabaker as Caitlin Snow — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Monster” — Image FLA305b_0370b.jpg — Pictured (L-R): Danielle Panabaker as Caitlin Snow and Thomas Cadrot as Nigel — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

Official Synopsis:

CAITLIN CALLS ON HER MOTHER FOR HELP WITH HER GROWING META POWERS — Desperate to understand what is happening to her, Caitlin (Danielle Panabaker) visits her mother, Dr. Tannhauser (guest star Susan Walters), a renowned biomedical researcher, in the hopes that her mother can provide some answers about Caitlin’s growing meta-human powers. However, when Dr. Tannhauser treats her daughter like a test subject, Caitlin grows cold and brings up past wounds causing the two to have a major blowout. Meanwhile, after a mysterious new meta-human attacks Central City, Barry (Grant Gustin) tries to convince Julian (Tom Felton) to let him assist on the case. Kim Miles directed the episode written by Zack Stentz (#305). Original airdate 11/1/2016.

‘The Flash’ Season 3, Episode 5 “Monster” airs November 1st at 8 p.m. on The CW.