STEPHANIE CORNELIUSSEN (“MR. ROBOT”) GUEST STARS AS VALENTINA VOSTOCK – When Vandal Savage (guest star Casper Crump) retreats behind the Iron Curtain in the early 1980s, a string of nuclear scientists begins to mysteriously disappear. The team follows Vandal’s trail straight into the heart of the Soviet Union in an attempt to find his next target. Ray (Brandon Routh) tries to bond with a beautiful Soviet scientist, Valentina Vostock (guest star Stephanie Corneliussen), in the hopes of finding out Vandal’s next move. When Valentina rejects him, it’s Snart (Wentworth Miller) to the rescue. Stein (Victor Garber) pushes Jax (Franz Drameh) to be better, which frustrates Jax and ultimately threatens the Firestorm matrix. Rip (Arthur Darvill) asks Sara (Caity Lotz) to train Kendra (Ciara Renée). Antonio Negret directed the episode written by Sarah Nicole Jones & Phil Klemmer.