The Flash 4.20 (Preview)

The CW has released a preview for "Therefore She Is," the twentieth episode of _The Flash_'s fourth season. The episode will see Barry and Iris work together to stop a new metahuman who can control people's minds. The preview shows the two of them struggling to fight off the metahuman's powers, and it's clear that they will need to find a way to work together if they want to save the day. You can watch the preview for yourself below.

Channel Category Duration Views
Music TV Clip 00:40 3