DC Comics Talk Podcast - DCCOMICSTALK

During the interview with Cat, Supergirl accidentally reveals that she is Superman's cousin. Supergirl is later attacked by Reactron, who seeks to kill her in order to get his revenge on Superman, but she manages to send him fleeing. He later goes to LORD Technology labs and kidnaps Maxwell Lord to get him to fix his suit. Kara later learns that a reactor meltdown Superman stopped in the past killed Reactron's wife, thus explaining the vendetta. She goes to Reactron's hideout and manages to save Maxwell Lord, only to get badly injured by Reactron afterwards, but Superman comes to save her. She gets mad at James, who called Superman for help, as she didn't want to rely on the Man of Steel. During a party Cat organized, Reactron breaks in to find Supergirl. While James distracts Reactron, Supergirl covers her hand in lead so that she can use it to safely remove the power core in Reactron's suit and defeat him. It is later revealed that James has an ex-fiance, Lucy Lane, who came to National City to patch up their relationship.

The team arrives in Washington, D.C. in 1986 to find a document that will lead them to Savage. The team infiltrates the Pentagon and retrieve a government file that points them toward scientist Valentina Vostok in the Soviet Union. Chronos tracks the team, and Rip is forced to use Russian fighter jets to assist in taking down Chronos. While Ray and Snart go after Vostok, Rip tracks a time anomaly outside of Moscow. Rip finds his mentor Zaman Druce, who offers to pardon Rip and return his new team to their time if Rip voluntarily surrenders. The pardon is a trick, and Zaman attempts to kill Rip. With help from the team, Rip survives and Chronos and Zaman escape. Back on the ship, Rip has Sara and Kendra work together to tame the feral nature that resides in each of them. Dr. Stein infiltrates a research lab and discovers Savage is trying to build an army with the same abilities as Firestorm. Dr. Stein absorbs the energy in Savage's thermal core, but he, Ray, and Mick are captured by the Soviets.

Valentina attempts to trick Dr. Stein into revealing the Firestorm formula, but he refuses. The team brokers a deal with the Bratva to get into the gulag where Ray, Mick, and Stein are being held prisoner. Before they leave, Rip pulls Sara aside and tasks her with killing Stein, should they fail to rescue him, in order to prevent a potential future where an army of Firestorms have destroyed the world. Savage has Ray and Mick tortured in front of Stein to force him to talk. Obtaining the formula, Valentina discovers that Stein is the other half of Firestorm. The team arrives at the gulag just as Valentina enters a reactor to start absorbing energy from a new thermal core. Snart rescues Mick and Ray, but Valentina merges with Stein to create a Soviet Firestorm. Jefferson is able to reach Stein's consciousness and force the two to separate. Without Stein or a quantum splicer, Valentina cannot control the nuclear reaction inside of her and ultimately is destroyed. As the team moves into the time stream, they are attacked by Chronos, who forces them to crash land in Star City of 2046. Here, they are confronted by a green-hooded archer.

Nate, Mick, Amaya, Felicity and Cisco travel back to the first Dominator invasion of Earth in Oregon, 1951. The Legends successfully capture a Dominator for information, but are themselves captured by Federal agents. While in custody, they learn from the Dominator that the aliens arrived to assess the threat humanity posed now that metahumans have appeared. Felicity and Cisco rescue the Legends and help set the Dominator free. Meanwhile in Central City 2016, the team learns that the Dominators know about Barry's manipulation of the timeline, and that they demand his surrender in exchange for peace. After the Legends return, the team discovers that the Dominators' weapon is a bomb that will kill all metahumans on Earth, with millions of collateral human casualties. The teams dissuade Barry from surrendering, with Cisco reconciling with him. They manage to destroy the bomb and force the Dominators to retreat using pain-inflicting nanotechnology. Cisco gives Supergirl a device to travel between their universes. Martin convinces Jefferson not to tell the others that his daughter, Lily, is an aberration of the timeline.

This episode concludes a crossover that began on The Flash season 3 episode 8 and continued on Arrow season 5 episode 8.

In 2016, historian Nate Heywood enlists Mayor Oliver Queen's help in locating the Waverider after it was caught in a nuclear blast in 1942. The pair find the sunken ship with only Mick aboard in stasis, who tells them what happened after being revived. Rip's team—Mick, Ray, Sara, Jax, and Martin—traveled through time dealing with "aberrations" in history. They learned that a nuclear bomb would be detonated in New York City in 1942. The team discovered Damien Darhk, working with the Nazis, was behind the attack. Sara attempted to kill Darhk to prevent Laurel's death, but Darhk escaped and launched his sole atomic bomb toward New York from a U-boat. Rip chose to scatter the team throughout time, except for the injured Mick, to save their lives while he intercepted the bomb with the Waverider and saved New York. In the present, Mick and Nate use the Waverider to travel through time and rescue everyone, but fail to find any trace of Rip. After fixing events in 1942 to prevent the Nazis from making a nuclear bomb, the team is confronted by the Justice Society of America (JSA). Meanwhile, Darhk is shown to be working with Eobard Thawne.