Greg's insistence on doing the family's taxes prompts Katie to take matters into her own hands; Oliver and Anna-Kat join forces in an attempt to win a popular radio contest; Taylor finally sees Pierce's true colors.
Sharon is unsettled by a strange moisture patch at school, while Rob's big boss visits London and takes a close interest in his career. Fran and Chris make a major decision.
Bessie Coleman is America's first black woman pilot; the students of the Little Rock Nine integrate a high school following the Brown v. Board of Education decision.
Barry and Ralph must go undercover as criminals in an illegal black market to purchase a device that could help them stop Cicada. Once inside, Barry and Ralph find their morality tested as they slip deeper into the criminal world, eventually having to choose between committing a crime, or losing the means to defeat one of their greatest foes. Meanwhile, Iris investigates a lead on Cicada’s whereabouts and ends up in a dangerous situation.