Hollywood, 1973. It was only the second day of 's stay in Los Angeles. Already, the word was out. Hordes of fans prowled the hallways of their hotel, the infamous Continental Hyatt House. The lobby was filled with photographers, groupies teetering on platform heels, even an impatient car salesman who'd come to deliver a hot-rod to drummer John Bonham. The cold steel elevator door slid open to reveal the ninth floor. Two beefy security guards stood there, demanding a note of authorization. One had already reached in, ready to smash the button ....