Malcolm's life, assassination, and legacy begin to unfold as historian Abdur-Rahman Muhammad shares his studies into the life of one of the most influential black leaders in history. Muhammad shares his personal experiences with law enforcement that radicalized him and connected him to Malcolm X’s story, and presents the leading mysteries surrounding the assassination; including the suspicious behavior of the NYPD, the watchul eye of the FBI, and the two men who maintained their innocence throughout their prison terms.

Questions about the case arise, with affidavits that the only admitted convicted assassin filed in the late 1970s, naming his accomplices and pointing to new information that the conspirators came out of a mosque in Newark, New Jersey. The Newark Mosque was known to be very devoted to Elijah Muhammad, the leader of the Nation of Islam, potentially so devoted that its members would not only die for him - they would kill for him. Abdur-Rahman Muhammad’s exploration of the truth begins by looking back at Malcolm X’s close and complicated relationship with his mentor Elijah Muhammad over the course of his 12 years with the Nation of Islam, before it began to unravel.

As the Civil Rights movement intensifies, tensions rise between Malcolm X and Elijah Muhammad, from Malcolm’s ascent as heir apparent to his suspension after controversial comments about JFK’s assassination. He seeks reconciliation through boxing star Cassius Clay, but the rift widens. Today, Abdur-Rahman Muhammad investigates the FBI’s extensive surveillance and manipulation of the Nation of Islam, while former NYPD lieutenant Tony Bouza and filmmaker Steve Fischler reveal police monitoring tactics. For the first time, an FBI agent discusses efforts to recruit Malcolm as an informant during his suspension.

Malcolm X’s split from the Nation of Islam becomes permanent, and he forms two new organizations—one political, one religious—traveling abroad to expose America’s civil rights abuses. As he rises on the global stage, threats mount. After the Nation evicts him, Malcolm retaliates by exposing Elijah Muhammad’s personal scandals, sparking a campaign to discredit him. Today, Abdur-Rahman Muhammad investigates the enduring loyalty of Elijah Muhammad’s followers to identify who was most responsible for Malcolm’s assassination, following evidence that the fatal shot came from a shotgun and tracking a suspect to Newark, New Jersey.

Abdur-Rahman Muhammad pursues the truth about “Shotgun Man” William Bradley and his potential involvement in the assassination of Malcolm X. Meanwhile, experts trace the last week of Malcolm’s life and the untold stories of the assassination witnesses who were never called forth to testify.

Abdur-Rahman Muhammad receives news that shakes up his plans to confront William Bradley and his quest for justice in the case of Who Killed Malcolm X. Later, he pursues a new avenue to try and clear the name of Muhammad A. Aziz. Malcolm X’s daughter Ilyasah Shabazz reflects on her father’s lasting legacy.