Black Panther: Wakanda Forever may be an effective, harrowing examination of grief, which depicts a nation and a family mourning the significant loss of King T’Challa — but it is still a Marvel Cinematic Universe film, meaning there is a potentially catastrophic global threat that our heroes (in this case, the royal family of Wakanda, the Dora Milaje, an M.I.T. student named RiRi Williams and CIA agent Everett Ross) must conquer before the nearly three hour run-time is up.