Michael and Kristine Barnett adopted a Ukrainian girl named Natalia Grace, whom they believed to be 6 years old. However, the couple soon began to suspect that she was an adult con artist who wanted to kill them.

In the final chapter of Natalia's story, a former adoptive family, the DePauls, attempts to uplift and support Natalia to gain financial and personal independence from the Manses. The twisty documentary series unveils more shocking details about Natalia's former adoptive family in four episodes released on Jan. 7 and 8 on Max.

The Final Chapter takes viewers behind the scenes of Natalia Grace’s rocky relationship with her adoptive parents and her dramatic attempt to escape from the Mans family.

Antwon and Cynthia Mans took in Ukrainian orphan Natalia Grace after her former adoptive parents, Michael and Kristine Barnett, abandoned her by renting an apartment for her in Indiana, believing she was in her 20s,

Natalia Grace Mans (née Barnett) was adopted by Cynthia Mans and Antwon Mans after she escaped alleged abuse from her former adoptive parents, Michael Barnett and Kristine Barnett. However, the Mans family may not have been the heroes that the Ukraine native needed.

In the final episodes of the ID series, Natalia's continued communication with her prior adoptive family wreaks havoc on the DePaul household as they try to help her understand how she's been exploited.

After Natalia Grace fleed from her adoptive parents home to live with a family in another state, they began to fear she was being "blackmailed" with sexual material and felt some of her troubling behavior was "a slap in the face.

Both viewers that have been tracking Natalia Grace's wild life story for years and those who just discovered the messy, drama-filled world of the Ukrainian-born orphan are in for huge twists as the third and final installment of The Curious Case of Natalia Grace drops bombshell after bombshell.