While T’Challa and Ross weren’t on the same page at first in Black Panther, after Ross was brought back to Wakanda so his bullet wound could be healed, he became a full-on ally to the eponymous hero and the other protagonists by providing intel on Killmonger and using his piloting experience to shoot down the aircraft that were going to take vibranium weapons outside of the country.
But even still, using Wakandan technology for the first time is difficult, so it’s fortunate that the Trevor Noah-voiced Griot was there to help him.
While most of Black Panther’s action took place in Wakanda, T’Challa, Okoye and Nakia traveled to South Korea to apprehend Ulysses Klaue, the weapons dealer who snuck into Wakanda nearly three decades earlier and stole a large amount of vibranium, killing many of the country’s citizens in the process.
However, upon reaching the location where Klaue was supposed to be, T’Challa reunited with Everett Ross, the CIA agent he met in Captain America: Civil War who was trying to procure a sample of vibranium Klaue recently obtained.