Arrow
Season 4 Episode 9: “Dark Waters”
Directed by John Behring
Written by Wendy Mericle & Ben Sokolowski
Created by Greg Berlanti, Marc Guggenheim, Andrew Kreisberg
Starring Stephen Amell, Katie Cassidy, David Ramsey, Willa Holland, Emily Bett Rickards, John Barrowman, Paul Blackthorne
The CW
Air Date: Wednesday, December 9th, 2015, 8:00pm

Last week on Arrow, we got the second half of the 2-night crossover event, which had the two camps hiding out in the country. Oliver (Stephen Amell) ran a secret DNA test through Barry (Grant Gustin) and “It’s a boy!” Felicity (Emily Bett Rickards) found out and their relationship seems over. They meet Savage (Casper Crump) with a plan and everyone dies, except Barry. HE runs back in time, and tells Oliver, who makes a different plan in both Savage strategy and Felicity strategy.

Spoilers below.