S4E8
Episode 8: Crisis on Earth-X, Part 3
⚠ Spoiler alert This recap gives away what happens in this episode.
Episode Summary & Review
While Flash, Arrow, White Canary, Firestorm, and Alex attempt to return to Earth-1, Felicity and Iris team up to free Kara before Eobard and Fuehrer Queen remove her heart and transplant it into Overgirl.