- "We do have a few friends who could lend a hand. But we're going to need to leave Central City."
- "You really want to go to Star City? Come on, we don't need Team Arrow's help."
"Yeah, I think we do, man."
- —Barry Allen and Cisco Ramon
"Legends of Today" is the eighth episode of the second season of The Flash and the thirty-first episode overall. It aired on December 1, 2015. The episode is the first part of a two-part crossover with the eighth episode of season four of Arrow. It acts as a setup for the series DC's Legends of Tomorrow, with the episode even introducing Vandal Savage, who is the "big bad" of the series' first season.
Vandal Savage arrives in Central City and sets his sights on Kendra Saunders. After Vandal attacks Kendra and Cisco, they turn to Barry for help. Realizing how dangerous Vandal is, Barry takes Kendra to Star City and asks Oliver and team to hide her until he can figure out how to stop Vandal. However, things quickly go from bad to worse when a man with wings AKA Hawkman shows up and flies off with Kendra. Meanwhile, Harrison develops a serum to make Barry run faster and asks Jay to test it out.
- When Vandal Savage is introduced, he is descending from the SS Tithonus. In Greek mythology, Tithonus was a Trojan who was granted immortality, but not everlasting youth.
- This marks the first appearance of Thea Queen and Malcolm Merlyn on a The Flash episode.
- Felicity notes that Vandal Savage is "Rocking the Dothraki look," a reference to the popular television series, Game of Thrones, where there is a race called the Dothraki.
|The Flash season 2|
|"The Man Who Saved Central City" • "Flash of Two Worlds" • "Family of Rogues" • "The Fury of Firestorm" • "The Darkness and the Light" • "Enter Zoom" • "Gorilla Warfare" • "Legends of Today" • "Running to Stand Still" • "Potential Energy" • "The Reverse-Flash Returns" • "Fast Lane" • "Welcome to Earth-2" • "Escape from Earth-2" • "King Shark" • "Trajectory" • "Flash Back" • "Versus Zoom" • "Back to Normal" • "Rupture" • "The Runaway Dinosaur" • "Invincible" • "The Race of His Life"|