T'Challa, the new ruler of a hidden African nation, faces a challenge for his throne in the form of his cousin, Erik 'Killmonger' Stevens. Assisted by his tribe's forces and CIA agent Everett K Ross, T'Challa is soon locked in a life-or-death struggle for the future of the world. Marvel's comic-book adventure, starring Chadwick Boseman, Michael B Jordan, Lupita Nyong'o and Martin Freeman