Hey, World!

Synopsis
While on a mission to find Ray, Constantine and Nora discover Neron’s evil plan. Nate convinces the Legends to think outside the box and suggests a dangerous plan to unite magical creatures and people to save the world.

Production
Preparation ran from December 20, 2018 until January 11, 2019, with a winter break from December 22, 2018 until January 4, 2019. Shooting ran from January 14 until January 24, 2019.

Trivia

 * The title references the name of the theme park that Hank wanted to create for Nate.
 * This is the first appearance of Vandal Savage since the season one finale.
 * After Ava and Zari comment that they should have reached out to the real Trinity (Supergirl, Green Arrow, and The Flash), Sara says that she did ask, but they said no. Nate responds that they should have asked them to do a crossover instead, a subtle reference to the fact that the Legends were not in the Elseworlds crossover, but Supergirl, Green Arrow, and Flash were.
 * Astra takes several soul coins of history's greatest monsters, including Joseph Stalin, the leader of the Soviet Union, and Caligula, who in history is known as one of the worst Roman emperors of all time.

Goofs

 * Gideon mentions the anti-meta-human act of 2029, but it was previously mentioned that that law came into effect in 2021.
 * However, it's possible that ripples due to time travel caused the law to come into effect later than it had in the previous timeline.