A year after the murder of columnist Jamal Khashoggi, FRONTLINE investigates the rise of Saudi Arabia's crown prince, Mohammed bin Salman. In a two-hour documentary, Martin Smith — who has covered the Middle East for FRONTLINE for 20 years — examines the crown prince's vision for the future of Saudi Arabia, his handling of dissent and his ties to Khashoggi's killing.

In collaboration with The New York Times, a new investigation into the design, oversight and production of Boeing's 737 Max jet, years after two crashes killed 346 people. An update of the investigation originally aired in 2021.