'The Vow' Renewed for Second Season at HBO

Catherine Oxenberg, Mark Vicente, Bonnie Piesse

The NXIVM docuseries will return with new episodes in 2021.

The Vow is getting a second season.

HBO has renewed the docuseries, which explores the NXIVM cult, ahead of its season one finale on Oct. 18. Jehane Noujaim and Karim Amer will continue to direct and produce the new episodes, which will debut on HBO and HBO Max in 2021.

Set against the backdrop of the federal trial of The United States against NXIVM co-founder Keith Raniere, The Vow: Part Two will offer an exclusive view into Raniere's innermost circle. It will delve into the stories of NXIVM’s top leadership in the U.S. and Mexico and into powerful, intimate stories of members of the group's sex ring DOS.

Part Two follows the legal and emotional journeys of the group’s founders, supporters and defectors as new evidence and stunning revelations come to light while federal prosecutors and defense attorneys battle for opposing views of justice in a case caught in the national spotlight.

The Vow premiered Aug. 23 to critical acclaim. The series offered extensive access to insiders and former members of NXIVM, delivering a nuanced look at their experiences over the years as they sought personal growth but ended up finding themselves entrenched in internal conflicts.

In June 2019, Raniere was convicted of crimes including racketeering, sex trafficking, forced labor conspiracy, identity theft, and production and possession of child pornography. He awaits sentencing, expected this fall.

Smallville star Allison Mack, who worked with Rainere to create the group's “master-slave” sex ring DOS, was arrested in 2018 on charges of sex trafficking, sex trafficking conspiracy and forced labor conspiracy. In April 2019, Mack pled guilty to racketeering conspiracy and racketeering charges and is awaiting sentencing.