When Nate thinks he has found a pattern to the anachronisms, it leads the Legends to London in 1897 to hunt down a time-traveling vampire. When they arrive in London, they run into Rip, but not everyone welcomes him back so quickly, leaving Sara to make a tough choice in the end. Amaya tries to connect with Zari, but she is still struggling with being part of the team. Meanwhile, Stein discovers what Ray and Jax are up to and is not entirely pleased.

Rattled by recent events, the Legends dive into work which finds them investigating an Anachronism in a Viking settlement in the New World. The Legends realize that the Norsemen are worshiping an artifact as their god and are surprised by the artifact's origin. For the first time, Sara is worried that they might need back up when Damien Darhk shows up. Meanwhile, Jax finds a loophole that could potentially change history, but it is a risk he is willing to take.

After Sara's encounter with Mallus, the Legends are paid a visit by John Constantine, a demonologist detective. The Legends agree to accompany him to a present-day psychiatric hospital and they are surprised to discover who Constantine is trying to help. During the exorcism, Sara, Leo and Constantine go missing, leaving Ray and Zari to try to take care of Constantine's client. Meanwhile, Amaya and Nate once again come face to face with Kuasa.

When Mallus' power over Sara resurfaces, she unwittingly becomes the bearer of one of the Totems. Rory must conquer his dark side in order to wield his own Totem power to help save the crew. Meanwhile, Agent Sharpe notices that something is wrong and recruits someone unorthodox to help.

When Ava disappears, Sara and Ray set out to find her after some prodding from Time Bureau agent Gary and a disturbing truth about Ava. Amaya tasks Zari with helping train Rory in controlling his own Totem power. Meanwhile, Nate and Wally set out on a mission that goes awry when they pair with an unlikely person to try and get a Totem.

The Legends plan to vanquish Mallus by using the totems doesn't go as planned, forcing Rip to improvise. The team finds itself regrouping in the Wild West where they run into their old pal Jonah Hex. Sara leaves Ray in charge of watching Damien Darhk, while she comes up with a new plan. Meanwhile, Amaya is determined to find a way to use the totems to destroy Mallus.