Alicia is assigned her first case after having to return to work following her husband's corruption scandal and incarceration. She quickly discovers that the retrial of a woman accused of murdering her ex-husband is not as straightforward as it seems.
Clarke and her friends struggle with how to proceed after learning the fate of the world.
A new threat dashes Clarke's hope for peace; Raven is targeted; Murphy (Richard Harmon) orchestrates a dangerous con.
Struggles for leadership and trust in Arkadia and Polis become violent; Abby guides a team on a quest for answers.
Clarke's arrival on the island takes a turn for the worse; Bellamy tries to avoid further tragedy in Arkadia.