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 trace a timequake to President Reagan’s White House, they are shocked to discover their old enemy Damien Darhk is now a Senior Adviser to Reagan. As the team works to uncover what Darhk has up his devious sleeve, Sara struggles with the choice of getting revenge or helping with the team’s larger mission. Thinking that the JSA members could be of help, Amaya and Nate break into the JSA and are surprised at what they find. Meanwhile, Stein tries to prevent his younger self from creating an even bigger time Abberation.

When the Legends track down an anachronism in 1930s Hollywood, they discover it's none other than a time-displaced Helen of Troy and she's just started a war between two film studios. As the Legends try to fix history and return Helen to the Bronze Age, things get complicated when they are blindsided by the appearance of a former enemy. Sara contemplates an offer she is made, which would make the Legends leave the anachronisms be. Meanwhile, Stein and Jax find themselves in an unusual predicament.

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 discover that kids at a summer camp have disappeared, Sara, Ava, Ray and Constantine find themselves as the new camp counselors. At camp, Ava struggles to get along with the kids, but Constantine whips up a potion that helps Sara and Ava bond with the children. Luckily, the team finds clues to the whereabouts of the missing kids, but the battle to save them leaves one member in bad shape. Meanwhile, Rory and Zari are tasked with watching the fugitive and Rory finds a kindship with their "prisoner."

With Constantine missing, the Legends struggle to find a way to track him. When Sara hesitates to make a tough call, Rory steps up creating a wedge in the team. Meanwhile, Ava gives Gary the responsibility of handling the Bureau performance reviews for all the Agents.

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 Sara recuperating from her latest battle, Charlie starts to notice something might not be right with her. Still searching for the Loom, Constantine and Zari find themselves trapped in a 1910 boarding house with a slew of out-of-time Encores. Meanwhile, Ava, Gary and Rory take a trip while Nate and Charlie hold down the Waverider.

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.

When Sara realizes Bishop's plan, Ava convinces Sara to allow the Legends to make exception to the rules to help fight back. Behrad comes up with an interesting plan, that allows Sara to connect with an old friend. Meanwhile, amidst a battle Sara and Ava make an important decision but need the help of the team to pull it off.

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.