After landing tech mogul Neil Gross as a new client, the firm is tasked with figuring out a way to combat hate speech on his social media platform. Maia's suspicions about her father grow after Uncle Jax pays an unwelcome visit. Lucca and Colin's romance heats up.

Diane takes on a new client who is accused of cyber-terrorism, resulting in unforeseen repercussions for the firm, especially Lucca. An accident brings Diane and Kurt together. Henry reveals new truths about the scandal to Maia.

Felix Staples (John Cameron Mitchell) rattles the firm when he returns with a case against ChumHum, bringing along a familiar face as his representation, Solomon Waltzer (Alan Alda). Diane receives a mysterious note at home, leading Kurt to question what she's been up to. Meanwhile, actor Gary Carr shadows Lucca for his upcoming role as a lawyer.

Diane Lockhart finds herself living in an alternate reality where Donald Trump was never elected and Hillary Clinton is the current president of the United States. While Diane's liberal self is overjoyed, she soon realizes how a different outcome of the 2016 election might have unexpected consequences.

The office must survive after being trapped by white supremacists.