Zeta, an infiltration unit, no longer wants to harm anyone. But the government won't let him go that easily. They want him back on his mission. Zeta encounters Ro, who tries to help him on his quest.
Zee and Ro board a train to evade their pursuers. Agent West manages to board the train. West tries to identify the pair before the train reaches its destination where more government agents await the train's arrival.
While waiting for a conference where Dr. Selig is supposed to attend, Zeta is attacked by an infiltration unit they encountered earlier. Batman believes Zeta has returned to his old programming and comes to deal with him.