After a car-chase in Busan, Ulysses Klaue was taken into CIA custody by Agent Everett Ross and transported him to CIA South Korean Black Site. T'Challa, Nakia and Okoye followed him. Ross interrogated Klaue about his own involvement in Wakanda's Vibranium. Klaue insisted that even deeper secrets hid in Wakanda, and that T'Challa and his family were in possession of massive amount of vibranium.
At this time, Erik Killmonger and his associates attacked the site and set Klaue free. When Killmonger opened fire, Ross dove on top of Nakia, taking a bullet. After stabilizing his wound, T'Challa offered to take Ross back to Wakanda to help him.