The hunt for a murder suspect uncovers a crime with shocking legal and ethical implications; Bruno must protect his squad during a raid on a suspect's home; Carisi and Price team up in court when Brady's interrogation tactics undermine the case.

The Doctor takes Amy to the distant future, where she finds the mysterious Liz Ten, a Star Whale, and all of Britain in a spaceship.

James finds himself getting deeper with the Children of Liberty in his attempts to meet Agent Liberty. Supergirl and Manchester Black look into a lead on Agent Liberty's location, while Lena begins her first set of trials.

Nia experiences a powerful dream about Agent Liberty but doesn't want to acknowledge it as a prophetic dream. Kara and Brainy attempt to persuade Nia to embrace her destiny and Manchester Black pays Ben Lockwood an ominous visit.

When Supergirl requires help, Alex asks Brainiac and Lena to work together. J'onn starts to question his decision.

Secretly removed from prison due to declining health, Lex Luthor meets with his sister to get her help. Lena is wary of Lex's motives, but when she is faced with a critical situation, she is forced to decide how she really feels about her brother.

When a new team helps Manchester Black to break out of prison, Supergirl sets out to apprehend them; a shocking new development regarding Ben Lockwood is revealed.