"Legends Of Tomorrow" starring Dominic Purcell as Mick Rory/Heat Wave/Chronos, Caity Lotz as Sara Lance/White Canary, Victor Garber as Professor Martin Stein/Firestorm, Brandon Routh as Ray Palmer/Atom and Nick Zano as Nate Heywood / Steel, showed the fourth installment of The CW's four-episode crossover event titled "Invasion!" Aside from "Legends Of Tomorrow," it also includes characters from "Arrow," "The Flash" and "Supergirl." Read on for the "Legends Of Tomorrow" "Invasion!" recap.

"Legends of Tomorrow" Season 2, episode 7 Spoiler Alert: This update contains more "Legends of Tomorrow" spoilers. Read on at your own risk if you have not watched the latest episode.

 

Mick, Nate, and Amaya Bring Cisco and Felicity Aboard The Waverider

Nate tells the others that The Dominators have already been to Earth in 1951, in Oregon. He brings Cisco Ramon (Carlos Valdes) from "The Flash" and Felicity Smoak (Emily Bett Rickards) from "Arrow," aboard the Waverider. Amaya Jiwe / Vixen (Maisie Richardson-Sellers) and Mick Rory / Heat Wave (Dominic Purcell) join them as they go back in time to 1951 in Oregon.

Lily Stein

Professor Stein also finds out that he now has a daughter named Lily (Christina Brucato), which he considers as an aberration caused by him when he traveled back in time in a previous episode of "Legends of Tomorrow." Stein tells Caitlin Snow (Danielle Panabaker) that he encouraged his younger self when he traveled in the past that it might be a good idea to have a child. Towards the end of this episode, he asks Jefferson Jackson / Firestorm (Franz Drameh) not to tell the rest of the team about Lily being an aberration.

Lone Dominator + "Men In Black" Type Agents

Nate, Amaya and Mick try to secure a lone Dominator for questioning as Cisco and Felicity remain in the ship. Unfortunately, they get arrested by "Men In Black" type guys led by a man in glasses (Jacob Richter).

Nate and company are still able to interrogate the lone Dominator while in custody and they find out that the alien race wants to study humans and assess whether they are a threat or not. Meanwhile, Felicity and Cisco had no other choice but to rescue Nate, Mick and Amaya. They also decide to set the Dominator free.

The Dominators want Barry Allen/The Flash to surrender to them

Back in 2016, in Central City, the team meets the older agent wearing the glasses (Donnelly Rhodes), that some of them refer to as "Agent Smith." They discover that the Dominators are aware of Barry Allen/ The Flash (Grant Gustin) and Flashpoint. They want him to surrender to them and in exchange, they will leave Earth alone.

Barry is willing to sacrifice himself, but the team doesn't want him to. They all figure out a way to use their powers and cooperate against the Dominators and destroy the bomb that will kill all metahumans on Earth. In the end, the Dominators retreat and the new US President Susan Brayden (Lucia Walters) congratulates the team in a press conference for a job well done.

"Legends of Tomorrow," "Arrow," "The Flash," "Supergirl" Victory Party In "Invasion!" Episode

Of course, there was a party to celebrate their victory. The teams from "Legends of Tomorrow," "Arrow" and "The Flash," as well as "Supergirl" (Melissa Benoist) mingled and had fun after battling the Dominators.

There were also some funny inside jokes, such as Felicity telling  Ray that Supergirl/Kara Danvers looks like her. To which, Ray added that Supergirl/Kara kind of looks like his cousin, which is a reference to Routh playing Superman in Bryan Singer's 2006 film "Superman Returns."

 Cisco also gives Kara a special device that will allow her to travel and communicate between universes, in case she needs help from "The Flash," "Arrow" and "Legends of Tomorrow" teams, or vice versa. 

READ | 'The Flash' 'Invasion!' Recap: Barry Allen Teams Up With 'Supergirl,' 'Arrow' & 'Legends Of Tomorrow' Gang To Fight The Dominators [VIDEOS]

After the DC's  "Legends of Tomorrow" Season 2, episode 7 "Invasion!" episode, "The Chicago Way" episode will be aired on Dec. 8 on The CW.

Watch: DC's "Legends of Tomorrow" | Found Footage: Invasion | The CW

Watch: DC's "Legends of Tomorrow" | "Invasion!" Scene | The CW

Watch: DC's "Legends of Tomorrow" | Inside DC’s Legends: "Invasion!" | The CW

Source: YouTube/The CW Television Network

What do you think of the "Legends of Tomorrow" Season 2, episode 7 "Invasion!"? Let us know in the comments section below.