Flash, Arrow, White Canary, Firestorm, and Alex attempt to return to Earth-1. Meanwhile, Felicity and Iris work together to free Kara before Eobard and Fuehrer Queen take out her heart and transplant it into Overgirl.

Caity Lotz, Chyler Leigh, Emily Bett Rickards, Franz Drameh, Jeremy Jordan, Juliana Harkavy, Melissa Benoist, Paul Blackthorne, Russell Tovey, Stephen Amell, Victor Garber, Wentworth Miller