Caitlin is reunited with her long-lost father, but Cisco suspects that not everything is at it seems. Ralph teams up with Cecile to learn who was injured the night of the Enlightenment by the satellite crash, and Iris, Nora, and Sherloque try to track down the core piece of the satellite.

To defeat Cicada, Nora comes up with a plan to assemble the necessary components from discarded villain items in the past and hide them in the present. Barry travels back in time to recover the three components, and reluctantly takes Nora with him.