The New Rogues

"The New Rogues" is the upcoming fourth episode of the third season of The Flash and the fiftieth episode overall. it will air on October 25, 2016.

Synopsis
Barry continues to train Jesse and when a new meta human, Mirror Master, appears on the scene he lets her tag along. Mirror Master has teamed up with his old partner, Top, and is looking for Snart to even a score. Jesse is quick to join the chase but defies one of Barry’s orders which results in disastrous consequences.