Constantine informs Sara of a new magical threat and enlists the team to help with a spell to defeat it; Nate and Rory go on an adventure; Nate faces someone from his past.
The Time Seismograph sends the team to the Salem witch trials, where members learn there is a magical creature in the town creating unexpected problems; Nate and Ava attempt to prove to the Time Bureau that magic exists.
The Legends must infiltrate and stop a gang in 1970s London that is targeting the British monarchy; Ray gains the gang's trust after being put through a series of tests; Gary shows Nate the ropes at the Time Bureau.
The Legends go under cover as camp counselors to find summer camp kids that have disappeared; Ava struggles to get along with the kids, but Constantine whips up a potion that helps Sara and Ava bond with the children.
A new fugitive is on the loose in 1951 Tokyo; as Constantine struggles to recover, Ray must look outside the team for help; Ava joins Nate and his family for an unconventional Thanksgiving dinner.
Hank Heywood confronts Ava about the spending habits of the Legends; Mona tries to make a good impression with Ava, but her over eagerness gets her and Ava stuck in a cell instead.
Rory and Ava are at odds; Sara tries to come up with a way for them to get along; a new magical creature attacks the Legends; Constantine is forced to confront his tragic past but it could have devastating consequences for the rest of the team.
After Constantine breaks the cardinal Legend rule, he, Charlie and Zari try to deal with the ramifications without telling anyone else.
When the legends hear that Mona has let a fugitive go, they must head to 1961 Mexico City to clean up her mess; 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; Nate, Zari, Nora and Gary work together to find out what Hank is really up to.
When Mona discovers that her favorite author might be at the epicenter of a magical alert, Mona, Sara, Charlie and Zari find themselves in 1809; Constantine and Rory perform a séance and receive a message that rocks Constantine to his core.
The team realizes that a new host of problems has arisen; Sara tries to save Ava from a fate worse than death while battling her own demons; Nora and Constantine work together to take down a powerful demon.
While Ray is worried about Nora, he is suddenly faced with his own problem that forces him to do the unthinkable; Nate and Zari are stuck in limbo, so Sara devises a plan to send them on an easy mission together.
With Constantine missing, the Legends struggle to track him; when Sara hesitates to make a tough call, Rory steps up, creating a wedge in the team; Ava gives Gary the responsibility of handling the Bureau performance reviews for all the Agents.
Sara and Ava concoct a bold plan to take back the Time Bureau; Zari and Charlie must work together to discover what Neron is planning; Constantine is given a tough choice on who to save from Hell.
While on a mission to find Ray, Constantine and Nora discover Neron's evil plan; Nate convinces the legends to think outside the box and suggests a dangerous plan to unite magical creatures and people to save the world.