Cary clashes with Lockhart/Gardner yet again when two male students are accused of murdering a female classmate on a college booze cruise. Complicating matters is that both of the accused men are sons of foreign dignitaries and appear to be protected from prosecution thanks to diplomatic immunity. While one of the suspects walks, the other must stand trial because his father is from Taiwan - a country not recognized by the US thanks to our close ties with China. As Cary attempts to pin the murder on Lockhart/Gardner's suddenly vulnerable client, Alicia and Caitlin look for a way to prove that the other diplomat's son was the one who did the deed. Meanwhile, Eli is approached by his ex wife in a professional capacity - she wants him to vet her in preparation for a possible state senate run.