Season Three

Monster

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Caitlin pays a visit to her estranged mother, who is a renowned biomedical researcher, hoping for some help learning about her disturbing transformation. Back in Central City Cisco grows suspicious of the new Harrison Wells. As the city is threatened by a gigantic creature, Barry tries to smooth things over with Julian.

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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.