Ahead of his new memoir, "In the Shadow of Eight," out Oct. 13, Gosselin sat down with ABC News' Juju Chang and detailed what he alleged happened behind the scenes of the popular reality show when the cameras stopped rolling.

"Simply put, my whole life that I lived was a lie," Gosselin said. "All the things you see on TV, lies."

Gosselin, one of six kids born to reality TV stars Jon Gosselin and Kate Gosselin, rose to fame as a child on TLC's "Jon & Kate Plus 8," which documented the family raising their twins, Madelyn and Cara, and sextuplets Leah, Hannah, Alexis, Joel, Aaden and Collin.

Jon Gosselin and Kate Gosselin announced their divorce in 2009 at the end of an episode of their show, which aired in June that year.

After the divorce, Kate Gosselin was granted primary custody of all eight children, and the family's reality series was later renamed "Kate Plus 8," focusing on Kate Gosselin's life as a divorced mother raising the twins and sextuplets.

Collin Gosselin claimed it was after his parents' divorce that his mother allegedly isolated him from his father and made him sleep in a locked room in their basement. He alleged that the abuse got so bad that it caught the attention of one of his teachers, who noticed his swollen earlobe, which he said happened after his mother allegedly "dragged" him across the room by his earlobe.

"My teacher saw ... and then I talked to my guidance counselor, and I told them about it," he said, speaking with Chang. "And my mom was not very happy that I spoke about that."

Collin Gosselin said he was eventually pulled out of school by his mom when he was in the fourth grade and recalled being "too afraid to say anything" when child protective services entered the picture.

When he tried to run away, Collin Gosselin alleges his mom zip-tied his hands and feet together and locked him in a basement room.