Report: The Flash Season 1, Episode 19 – "Who Is Harrison Wells?"

In this pivotal late-season episode, the suspicion surrounding Dr. Harrison Wells reaches a boiling point. The narrative splits into two primary tracks: a investigative road trip to Starling City and a shapeshifter threat in Central City that tests the team's internal trust. 1. The Starling City Investigation

April 21, 2015 Directed by: Wendey Stanzler Written by: Ray Utarnachitt & Cortney Norris Overview

Cisco assists Laurel Lance (Black Canary) by upgrading her "Canary Cry" device.