The Flash

Season 4, Episode 21

Episode Title: Harry and the Harrisons

Air Date: 2018-05-08

Overview:

With DeVoe's Enlightenment device nearly complete, in order to disable it The Flash and his team must put their faith in an unlikely ally – Amunet Black. Meanwhile, Harry hits an all-time low when the "Council of Wells" kicks him out but then Cisco introduces him to the "Council of Harrisons."