Watch The Flash S1E21 : Grodd Lives Full Episode Online for Free in HD @ br br Air Date : October 7th, 2014 br Season Number : 1 br Episode Number : 21 br Episode Name : Grodd Lives br Networks : The CW br Genres : Action, Adventure, Drama, Science Fiction br br Storyline: br Barry must deal with the Reverse Flash's latest threat to a member of the group. To make matter worse, Dr. Wells unleashes Grodd on the city in order to distract Barry and the team. Joe, Barry and Cisco head down into the sewers to catch Grodd but the gorilla quickly gets the upper hand after he kidnaps Joe. Iris and Barry have a heart to heart talk. br br Casts: br Candice Patton, Carlos Valdes, Danielle Panabaker, John Wesley Shipp, Grant Gustin, Jesse L.