Months into his second term, President Donald Trump welcomed Saudi Crown Prince Mohammed bin Salman to the White House. It had been seven years since a Saudi hit squad murdered journalist Jamal Khashoggi, in an operation U.S. intelligence assessed MBS had approved.Now, Trump hailed MBS as a friend. The two men announced from the Oval Office that Saudi Arabia planned to invest hundreds of billions of dollars in the U.S.FRONTLINE's new documentary "The Crown Prince & the President" draws on over 100 interviews to investigate what forces bind the two men and their countries together, and what each stands to gain.

One year after the murder of columnist Jamal Khashoggi, a two-hour FRONTLINE documentary investigates the rise and rule of Crown Prince Mohammed bin Salman of Saudi Arabia (MBS). Correspondent Martin Smith, who has covered the Middle East for FRONTLINE for 20 years, examines the crown prince’s vision for the future, his handling of dissent, his relationship with the United States — and his ties to Khashoggi’s killing.