Centuries ago, five African tribes fought over a meteorite that contained the powerful metal, Vibranium. One warrior consumed a heart-shaped herb infused with Vibranium, gaining extraordinary abilities and becoming the very first Black Panther. This hero successfully unified most tribes, apart from the Jabari Tribe, to establish the nation of Wakanda. Utilizing Vibranium's properties, the Wakandans developed cutting-edge technology while skillfully masking their true nature by presenting themselves as a Third World nation, complete with a camouflaged energy shield around their homeland. The Jabari Tribe then chose to reside in the mountains, distanced from the rest of Wakanda.
Fast forward to 1992, when King T'Chaka (portrayed by Atandwa) confronts his brother N'Jobu (Sterling K. Brown), who is working covertly in Oakland, California. T'Chaka expresses his suspicion that N'Jobu is collaborating with the black-market arms dealer Ulysses Klaue (Andy Serkis), known for stealing 0.25 tons of Vibranium from Wakanda. Klaue, a notorious smuggler, cleverly uses a piece of advanced Wakandan technology to form a sonic disruptor as an arm-cannon.
N'Jobu's accomplice, Zuri (Forest Whitaker), reveals his true identity as another undercover Wakandan agent, thereby validating T'Chaka's apprehensions. N'Jobu is then compelled to return home and face the consequences of his actions.
In present-day Wakanda, after the death of T'Chaka, his son T'Challa (Chadwick Boseman) prepares to ascend the throne. Accompanied by Okoye (Danai Gurira), the head of the elite all-female special forces known as the Dora Milaje, T'Challa rescues Nakia (Lupita Nyong'o), his former lover, from an undercover mission in order for her to attend the coronation with his mother Ramonda (Angela Bassett) and sister Shuri (Letitia Wright), the innovative princess who designs advanced technology for Wakanda.
During the coronation ceremony, the leader of the Jabari Tribe, M'Baku (Winston Duke), challenges T'Challa for kingship in a ritual fight. T'Challa triumphs and persuades M'Baku to concede instead of facing death. That evening, T'Challa ingests the heart-shaped herb, granting him the enhanced powers of the Black Panther. Within the Astral plane, he has a profound encounter with his father's spirit, T'Chaka.
Nakia advocates for Wakanda to aid those in need globally, while T'Challa seeks to maintain the nation's secrets and its technological advancements. Their contrasting views become more pronounced when Klaue and Erik Stevens (Michael B. Jordan), N'Jobu's son and a U.S. black-ops soldier, jointly steal a Wakandan artifact from a museum in London.
As events unfold, intelligence suggests Klaue intends to sell the stolen Vibranium to an American buyer in South Korea. T'Challa, along with Okoye and Nakia, ventures to an underground casino in Busan where Klaue is set to meet his buyer, CIA agent Everett K. Ross (Martin Freeman). After a chaotic firefight and a dramatic pursuit, T'Challa secures Klaue but reluctantly turns him over to Ross’s custody.
Klaue brags about Wakanda’s image as a poor nation being merely a facade. Soon after, Erik makes his move to rescue Klaue, severely injuring Ross while he protects Nakia. T'Challa opts to bring the injured Ross back to Wakanda for treatment, where he learns about the vast, advanced technology at her disposal.
As T'Challa confronts Zuri regarding N'Jobu's history, he uncovers a plot that N'Jobu devised to share Wakanda's technology with the African diaspora, hoping to help them rise against oppression. The confrontation leads to revealing that Erik is actually of royal blood, making him a contender for the throne alongside T'Challa.
Taking matters into his own hands, Erik kills Klaue and arrives in Wakanda, identifying himself as the rightful heir. He challenges T'Challa in ritual combat, where he ultimately defeats him after murdering Zuri. Erik orders the destruction of the remaining heart-shaped herbs, but Nakia manages to save one.
Now in a position of power, Erik aims to distribute Wakanda’s advanced weaponry globally, causing chaos. Meanwhile, Nakia, Shuri, Ramonda, and Ross seek refuge with the Jabari Tribe, where a comatose T'Challa is also being cared for. Rescued by the Jabari, T'Challa is revived by Nakia’s herb and returns to confront Erik, who dons his own version of the Black Panther suit, rallying W'Kabi and an army to wage war.
In a dramatic climax, T'Challa, with allies like Shuri, Nakia, and the Dora Milaje, engages in an intense battle against Erik's forces, all while Ross tactically disables the planes carrying the Wakandan shipments. With reinforcements from M'Baku and the Jabari, the tide turns. In a fateful duel within the Vibranium mine, T'Challa awesomely disrupts Erik’s suit and stabs him. Erik rejects healing, choosing a death that reflects his desire for freedom rather than imprisonment.
In a renewed spirit of hope, T'Challa launches an outreach center in the very place where N'Jobu fell, to be managed by Nakia and Shuri. In a pivotal mid-credits scene, he boldly presents Wakanda's true purpose to the United Nations, revealing the nation’s advanced capabilities to the world. Finally, in a post-credits moment, Shuri supports Bucky Barnes in his recovery, hinting at future alliances.
