Barry (Grant Gustin), Wells (Tom Cavanagh) and Cisco (Carlos Valdes) journey to Earth-2 to rescue Wells’ daughter, Jesse (guest star) from Zoom. Barry is stunned when he runs into Earth-2 Iris (Candice Patton) and Joe (Jesse L. Martin), but nothing prepares him for meeting Killer Frost (Danielle Panabaker) and Deathstorm (guest star Robbie Amell). Meanwhile, back on Earth-1, Jay (guest star Teddy Sears) has to take over the Flash’s responsibilities when a meta-human nicknamed Geomancer (guest star Adam Stafford) attacks Central City. Millicent Shelton directed the episode written by Greg Berlanti & Andrew Kreisberg and Katherine Walczak.
We've seen Eugene's story. But during his last day's in Vietnam, he finally learns how Ha survived the war. She's always been much stronger than him; and much stronger than he's given her credit for. With all their secrets gone, Ha and Eugene must decide how to move forward.