The final appearance for Danny Pino as Nick Amaro until season 23's The Five Hundredth Episode (2021)
The flashback in the opening of the episode is from Undercover Mother (2015). This episode continues the storyline from that episode with the trial of Johnny Drake.
Ed Tucker tells Benson that Amaro is "damaged goods" as 1PP would be reluctant to promote him after he shot an unarmed fourteen year old (Yusef Barré), chased after three people with a baseball bat (both of which happened in the episode Amaro's One-Eighty (2014)), and beat an innocent suspect (Simon Wilkes) outside a school yard in the episodes Thought Criminal (2014) and Spring Awakening (2014).