CW DC Synopses December 6-8

I'm going to post all the CW DC episode synopses together from now on. There's no episode of Supergirl that week.

The Flash 3x09 The Present

BARRY SEEKS HELP FROM JAY GARRICK — With Alchemy and Savitar still looming threats, Barry (Grant Gustin) is unable to focus on the Christmas holiday, and especially his relationship with Iris (Candice Patton). Determined to stop Savitar, Barry goes to Earth-3 to get advice from Jay Garrick (guest star John Wesley Shipp). Wally (Keiynan Lonsdale) wants to help Barry fight Savitar and reveals that he’s been training with H.R. (Tom Cavanagh), which doesn’t go over well with Barry. As Cisco (Carlos Valdes) faces his first Christmas without his brother Dante (guest star Nicholas Gonzalez), old wounds are reopened. Rachel Talalay directed the episode with story by Aaron Helbing & Todd Helbing and teleplay by Lauren Certo (FL309). Original airdate 12/6/2016.

Arrow 5x09 What We Leave Behind

PROMETHEUS MAKES A DEADLY MOVE AGAINST OLIVER AND THE TEAM — After Prometheus attacks Curtis (Echo Kellum), Oliver (Stephen Amell) realizes Prometheus knows all of Team Arrow’s secret identities and is planning to come for them one by one. Felicity (Emily Bett Rickards) and Detective Malone (guest star Tyler Ritter) discover a clue that links Prometheus to Oliver’s past. Antonio Negret directed the episode written by Wendy Mericle & Beth Schwartz (AR509).  Original airdate 12/7/2016.

Legends of Tomorrow 2x08 The Chicago Way

LEGION OF DOOM — When a new Time Aberration is discovered by the Legends, they find themselves headed to 1927 Chicago.  The Legends quickly realize that they have been set up by Eobard Thawne (guest star Matt Letscher), Damien Darhk (guest star Neal McDonough) and the newest member of the Legion of Doom, Malcolm Merlyn (guest star John Barrowman).  While everyone is trying to help fix what they think is the mission, Jax (Franz Drameh) encourages a reluctant Stein (Victor Garber) to share his secret with the other Legends.  Stein is taken captive and Sara (Caity Lotz) must make the tough choice of either stopping the Legion of Doom or saving Stein.  Meanwhile, Rory (Dominic Purcell) gets an unexpected visitor and is not sure how to handle it.  Brandon Routh, Nick Zano and Maisie Richardson-Sellers also star. Ralph Hemecker directed the episode written by Sarah Nicole Jones & Ray Utarnachitt (#208).  Original airdate 12/8/2016.