The Vow

Series premiere. Mark and Sarah, top former NXIVM leaders, describe the dream and mission of the organization.

Bonnie leaves NXIVM to make sense of it all and tries to convince Mark that something's amiss.

Sarah confides in Mark about DOS, a secret women's group. They lament their roles as recruiters and question what to do next.

The former members strategize with Catherine Oxenberg about how to get her daughter out of DOS.

The team approaches the New York Times in order to get the attention of the authorities. Mark reflects on his role supporting NXIVM.

When they see no action by the authorities, the team contacts additional media outlets. Barbara, an early defector, shares her insight.

Catherine meets with Frank Parlato to build a dossier of evidence for the New York Attorney General's office.

As the group prepares to testify to the FBI, they reflect on their beliefs regarding the SOP and JNESS curriculums.

Finale. Keith leaves the U.S. and is spotted in Mexico. Later, the team faces a shocking development in the case.