DC's Legends of Tomorrow - Season 7 - Eps 5: It's a Mad, Mad, Mad, Mad Scientist
After Sara, Ava, Behrad and Gary arrive in New York City, they track down Dr. Gwyn Davies, who isn't the scientist they expected. Astra, Spooner, and Gideon are still trying to stop the Legends from using the time machine, but they run into some more setbacks along the way. Meanwhile, in the pocket dimension Nate and Zari work together on the Hoover situation as well how to make their future together work.
About DC's Legends of Tomorrow

Title: DC's Legends of Tomorrow
First Air Date: 2016-01-21
Last Air Date: 2022-03-02
Status: Canceled
Rating: 7.3/10 (from 2340 votes)
Language: EN
Seasons: 8
Total Episodes: 110
Network: The CW
Genres: Action & Adventure, Sci-Fi & Fantasy, Drama
Production Companies: Warner Bros. Television, Bonanza Productions, Berlanti Productions, DC Entertainment
Synopsis
When heroes alone are not enough ... the world needs legends. Having seen the future, one he will desperately try to prevent from happening, time-traveling rogue Rip Hunter is tasked with assembling a disparate group of both heroes and villains to confront an unstoppable threat — one in which not only is the planet at stake, but all of time itself. Can this ragtag team defeat an immortal threat unlike anything they have ever known?
Cast

Caity Lotz
Sara Lance / White Canary

Tala Ashe
Zari Tarazi

Jes Macallan
Ava Sharpe

Olivia Swann
Astra Logue

Adam Tsekhman
Gary Green

Nick Zano
Nathaniel 'Nate' Heywood / Steel

Shayan Sobhian
Behrad Tarazi

Lisseth Chavez
Esperanza 'Spooner' Cruz

Amy Pemberton
Gideon / Evil Gideon

Matt Ryan
Dr. Gwyn Davies