The new details and spoilers for "Legends of Tomorrow" will feature the return of Captain Cold and zombies in episode 4 plot synopsis.
Executive producer March Guggenheim announced that Leonard Snart/Captain Cold (Wentworth Miller) will return in "Legends of Tomorrow" season 2 during its midseason finale, joining three DC TV villains Malcolm Merlyn (John Barrowman), Damien Darhk (Neal McDonough) and Eobard Thawne/Reverse-Flash (Matt Letscher) to form the Legion of Doom, Cinemablend reported.
Captain Cold will appear in episode 8 as the last member of the group which will shock his fellow Legends after his heroic sacrifice to stop the Time Masters from capturing the Legends in season 1.
Co-producer Greg Berlanti teased Miller's return as Leonard Snart as he signed on to appear in all CW Network owned DC TV series. This is similar to how Barrowman negotiated talks of also appearing in other DC TV series show along with his "Arrow" co-star Katie Cassidy.
Letscher stated in an interview that that Reverse-Flash will be the "driving force" behind the group as he searches for his teammates across various timelines.
Episode 1 revealed that Eobard is Damien Darhk's mystery partner and it seems that Eobard will take his time convincing his future teammates, Malcolm Merlyn and Leonard Snart as the Legion of Doom will likely wreak havoc in the timestream and change history as they pleased.
In other news, the plot synopsis for episode 4 of "Legends of Tomorrow" season 2 titled "Abomination" will have the team fight zombies during American Civil War in 1863.
The Legends new leader, Sara Lance/White Canary (Caity Lotz) and Nate Heywood/Citizen Steel (Nick Zano) will be meeting with General Ulysses S. Grant during the Civil War. Jax Jackson (Franz Drameh) and Amaya/Vixen (Maisie Richardson-Sellers) are disguised as slaves, carrying out a dangerous mission. Sara begins the heavy burden and responsibilities as a leader, while Ray Palmer/The Atom (Brandon Routh) questions his place on the team, Comicbook reported.
The next episode of "Legends of Tomorrow" season 2 will feature the team travelling to feudal Japan to rescue Ray and Nate, and retrieve the Atom suite at the hands of a Shogun. The said episode will also feature Nate having powers and Jax along with Matin Stein (Victor Garber) discover a hidden compartment in the Waverider, which reveals something important and decides to not tell the team.
"Legends of Tomorrow" will return on Thursday 8pm on the CW Network.