Robin is forced to face the past and the truth he has been avoiding when Red X unexpectedly returns. Robin hides his past from the rest of the Titans. Robin becomes Red X to stop a villain without realizing that he himself was becoming a villain. The Titans must find out who is the new Red X. Robin created Red X and feels it is his job to stop the new Red X.

Soldiers raid a compound while dressed as women. They end up killing multiple men while removing the women and children.

It is described how many tribes were drawn to live near the Nile River, and how these were united to form Egypt under Menes. The narrator then describes how canals were built, and how they became ancient Egypt's main system of transport. It is then detailed how ancient Egyptians took advantage of canals and what particular commodities were transported through the canals.

In this clip, Charlie suggests using an evolutionary algorithm to search for abnormal behavior after a murder occurs in a video game with a real-life component. Evolutionary algorithms imitate the biological process of natural selection to find optimal solutions.

Constantine reveals himself, showing his mole, which sets him apart from his doppelganger, Kermit.