Natalia Grace was first brought to the U.S. in 2008 by the Ciccones before being adopted by the Barnett family and later the Mans family

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.

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.

Anna Newlin, who once lived with the Mans family, defends the Mans family on camera, but then suggests to producers of the show that Natalia was struck with a belt and kicked down a flight of stairs by the Manses. "There's some things that can land [Cynthia] and Antwon in jail for a long time," she says in a voiceover.

Natalia Grace reveals why she finally cut ties with her adoptive parents after fleeing their home to live with another family -- and the moves she's making to take "control over my life."

"There were zero hesitations in continuing the story," says ID president Jason Sarlanis of the 'Final Chapter' episodes, streaming Jan. 6-7.

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.

Viewers are in for a ride when "The Curious Case of Natalia Grace: The Final Chapter" returns for its third and final season in January. The Investigation Discovery series follows Natalia Grace, a Ukrainian orphan with a rare dwarfism condition, as she "is forced to navigate a number of seemingly insurmountable challenges," per a press release.

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.