When rapper Notorious B.I.G. (aka Biggie Smalls) died in a hail of bullets outside the Soul Train Music Awards in Los Angeles in March of 1997, it appeared to be the latest salvo in the East Coast/West Coast rap/gang rivalry that had claimed the life of Tupac Shakur six months earlier in Las Vegas. Three years later, however, Los Angeles police Detective Russell Poole, who had been assigned to the Smalls case, went public with a startling accusation: the LAPD’s top brass derailed the investigation when Poole began uncovering evidence that tied fellow LAPD officer David Mack to the rap star's murder. What if one of L.A.'s most infamous unsolved homicides involved a cop? Might it furthermore be connected to the city's unfolding Rampart scandal -the worst in LAPD history? Through a series of interviews as well as newly unveiled evidence, the film reveals some shocking details about the still unsolved murder of two of the biggest stars in rap.