Hustling on the streets of New York. Wagering with a U.S. president over who could sleep with more women. Knocking back beers with Elvis. Waving his gun around at the funeral of Jay Sebring, one of the victims of Charles Manson’s murderous family. The same family that had their sights now set on the King of Cool, Steve McQueen, who needed the speed of a Mustang or the power of a Magnum to keep Charlie’s crazy cult at bay.