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 them from everyone, including Constantine. Now that they have a special guest on board the Waverider, Nate, Zari, Behrad, Gary and Astra all work together but experience some growing pains along the way. Meanwhile, Sara and Lita are concerned about Rory's health, so they try to convince him to take it seriously.

The Legends are ready to get back home, but after Constantine overloaded Gideon, they are going to have to go the old fashion way to preserve the ships energy. Trying to entertain themselves, tensions start to grow high, so Gary suggests playing a murder mystery game to pass the time. Constantine decides to make the game more interesting, which makes Behrad worried about him but is met with pushback from Zari. Meanwhile, Rory and Gary deal with an unexpected guest that arrives on the Waverider.