The Legends find themselves in 2045 trying to defeat an Alien warrior which leaves Zari no choice but to enter a popular singing competition. Sara finds herself struggling after being attacked but someone familiar helps her to keep searching for refuge. Meanwhile, Zari and Constantine have a much-needed conversation with each other.

Behrad is disappointed because the Legends have forgotten his birthday. Meanwhile, Rory's behavior has been a little off, so Sara and Gary become determined to find out what happened, but Rory gets some unexpected news from his daughter, Lita.

The Legends find themselves tracking an Alien in 1950s San Bernadino and having to figure out what is making the town go on a feeding frenzy. Meanwhile, after crash landing, Sara tries to figure out a plan and runs into none other than Amelia Earhart.

With Constantine obsessed with getting his powers back, he convinces Spooner to join him on the quest to find the Fountain of Imperium. After they find themselves at the end of the Spanish Civil War, Spooner makes an unexpected bond with someone she feels the need to protect. Meanwhile, Sara and Lita are concerned about Rory's health, so they try to convince him to take it seriously.

Rip tells the team they are headed to the future to take out a powerful ally that Savage needs in order to conquer the world. However, when Rip reveals the ally is a 14 year-old boy who will one day grow into an evil dictator, the team is split about the morality of killing a child, even if it does save the world. Meanwhile, Sara talks Snart through a rough patch and Ray learns something that could impact his future with Kendra.

When the Legends track down another Alien pod, they find a device that transports them to a cosmic bowling alley. Spooner makes a bet against the reigning champs for a ride back to the Waverider, but not everyone is happy about the plan when they realize what they are up against. Elsewhere, Nate plans a romantic date for him and Zari, but nothing goes as planned. Meanwhile, Behrad and Gary try to distract Ava from what's going on with wedding planning.

Sara starts to realize her team is making questionable choices when it comes to the timeline. Trying to figure out who is behind everything, Sara discovers some harsh truths.

When Gideon jumps the time machine into the Manor Dimension, which lands in Hell, Astra realizes that a damned 90's reality show crew sneaks into the manor. With the reality show crew causing emotions to spike, Sara and Ava share their true feelings about their roles as Co-Captains. Behrad seeks advice about Astra from Nate and Zari but Behrad finds that his past is put on display instead.

The Legends continue their quest to hunt down the Spear of Destiny before the pieces fall into the hands of the Legion of Doom. The Legends discover that pieces of the Spear are each being guarded in different time periods by members of the JSA. Their first stop is the future where they find Dr. Mid-Nite which eventually leads them to the past and King Arthur’s Camelot, where Stargirl is protecting her piece of the Spear. In order to protect the Spear shard from the now-evil Rip Hunter, the Legends must join forces with the Knights of the Round Table.

The Legends find themselves in 1870 to fix the anachronism which happens to be at P.T. Barnum's fledgling circus. However, Nate and Ray accidentally free a saber toothed tiger, creating a bigger problem. Meanwhile, P.T. Barnum is on the hunt to capture Nate and Ray to make his show even more exciting for the crowd.

When Mona discovers that her favorite author, Jane Austen, might be at the epicenter of a magical alert, Mona, Sara, Charlie and Zari find themselves in 1809. With Nate still dealing with family issues, Constantine and Rory perform a séance and receive a message from the other world that rocks Constantine to his core. Meanwhile, Ray and Nora are forced into close quarters.

Sara, Ray and Mick are shocked to discover that the Legends have become famous. The Legends discover that their new problem is Rasputin. Constantine thinks he knows the reason for new time blips and informs the team that it won't be easy to defeat.

The Legends are shocked when Rory takes command and manages to find the location of an important Alien, but he also lands them in the middle of the Cuban Missile Crisis. The team makes the decision to split up, leaving Nate and Zari to work together to stop a nuclear disaster alongside JFK while Behrad tries to leverage his newfound friendship to stop Castro from starting a war. Meanwhile, with Spooner's help, Rory makes an unlikely deal that could lead him on a solo mission to find Sara.

With Astra now a mortal, she finds it hard to adapt to the real world with no guidance from Constantine. Frustrated and lonely, Astra makes a new friend who promises to help her, but her eagerness for the easy way out could have some real repercussions for those closest to her. Meanwhile, Sara meets the person responsible for her kidnapping and tries to convince others to help her escape.

With Gideon hurt, the Legends only have one way to save her. Once Evil Gideon is active, she continues to try to destroy the Legends, until Gideon reminds her of a certain protocol she must follow. Trying to help, Gideon negotiates a deal to save the Legends but to get them to agree, she breaks a major rule. Meanwhile, the Legends come up with another plan that could potentially solve all their problems.

Nuclear scientists mysteriously disappear when Vandal Savage retreats behind the Iron Curtain in the early 1980s. The team follows Vandal's trail in an effort to find his next target, while Ray bonds with a beautiful Soviet scientist. Stein pushes Jax to be better, which frustrates Jax and ultimately threatens the Firestorm matrix. Rip asks Sara to train Kendra.

After numerous attempts in many different time periods, the team has successfully captured Vandal Savage. However, Savage tells Kendra that he can reunite her with Carter so she struggles with whether she should kill him. Rip decides they will deliver Savage to the Time Masters which doesn’t sit well with Snart and Rory. The duo decides it may be time to jump ship and return to their old life. Meanwhile, Savage taunts Ray about his place in Kendra’s life.

When the Legends learn that a mysterious tragedy destroyed Memphis in 1954, thus eradicating the birthplace of rock and roll, they embark on their most important mission - to save music. Nate is excited to show Amaya why music is important to him and he is surprised it leads to a rock legend as well as the sixth and final totem, the Death Totem. Meanwhile, Zari helps their newest member try to adjust to the team.

When the Legends hear that Mona has let a fugitive go, they must head to 1961 Mexico City to clean up her mess. Mona tries to convince the Legends and the Bureau that the people responsible for releasing the fugitive were some mysterious Men in Black and not her. With no evidence to back up her theory, the Legends must decide if they should trust her and go against the Bureau. Meanwhile, Nate and Zari go on a recon mission to find out what Hank might be hiding from everyone.

When Hank commandeers the Waverider in 1973, the Legends find themselves on the run in an RV after kidnapping the President who is only able to tell the truth. With the help of Constantine, they discover the reason that none of them can lie making for an uncomfortable family road trip. Meanwhile, Nate and Zari, with the help of Nora and Gary, work together to find out what Hank is really up to.

When a new blip lands the Legends in 1947 Los Angeles, it puts them on the trail of Benjamin “Bugsy” Siegel who seems to take pleasure in fraternizing with Hollywood Elite. Sara, Ray and Constantine devise a plan to capture him while Ava and Rory sit on the sidelines for the time being. They soon realize that they need to worry less about Bugsy and more about his girlfriend. Ava is struggling with being on the sidelines with Rory. Meanwhile, Nate accompanies Behrad to his dad’s birthday, where Nate meets Behrad’s sister, Zari, who seems familiar to him.

With everyone finally back together, the Legends find themselves looking to Nate to keep everything calm while in the old West on a mission to find an alien. After trying to keep things normal, Sara reveals her secret to Ava and the team, leaving them all shocked. Constantine looks to Gary who might have the answer to his problem. Spooner and Astra are forced to work together despite their clashing personalities which ultimately helps push them to hone their powers.

Rip decides to weaken Vandal Savage by going after his financial assets. Rip and Sara infiltrate Savage’s bank, but are discovered by his men. Snart and Rory talk Jax into taking the jump ship back to Central City so they can steal a valuable emerald.

The team tracks Savage to a small town in Oregon during the 1950s. Upon arrival, they discover there have been a recent string of murders and they suspect Savage is involved. Professor Stein and Sara go undercover at a psychiatric hospital, where Savage is working as a doctor, to find out his plan. While there, Sara meets a nurse named Lindsay and sparks fly. Meanwhile, Ray and Kendra pretend to be a married couple to gain the neighborhood’s trust, but an interracial couple in the ‘50s isn’t something that goes unnoticed. Soon, Savage is at their door.

The Legends are still reeling from the news that their time travel-nemesis is a speedster when they are alerted to an Aberration in the Old West. When the Legends arrive they find their old friend Jonah Hex in trouble with his arch-nemesis, Quentin Turnbull. The team soon discovers that they need to stop Turnbull and his gang from conquering the West and branding it his own lawless territory. To Hex’s surprise, Sara is in charge and dispatches the team. Rory is ecstatic to be in the Wild West, but Sara makes Amaya work with him to keep him on task, which is easier said than done. Meanwhile, Nate, Ray and Jax try to infiltrate Turnball’s gang, but find themselves in a shootout leaving Nate’s confidence shaken.