Dr. Wells' former protégé, Hartley Rathaway, returns to seek revenge on his mentor. Meanwhile, Iris is hired as a cub reporter; Cisco recalls his first day on the job at S.T.A.R. Labs; and Joe asks Eddie for a favor but asks him to keep it a secret from Barry.
|First Air Date||:||Oct 07, 2014|
|Last Air Date||:||May 22, 2018|
|Number of Episodes||:||93|
|Number of Seasons||:||5|
|Genres||:||Drama, Sci-Fi & Fantasy|
|Casts||:||Grant Gustin, Candice Patton, Jesse L. Martin, Tom Cavanagh, Danielle Panabaker, Carlos Valdes|