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In the fourth-season premiere, a woman tries to track down her father after his unexplained disappearance 35 years earlier. Also: A woman looks for her sister, whom her mother unwillingly put up for adoption.
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A woman looks for her biological father, whose identity she discovered when she was a child.
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After learning as a teen that he was adopted and has a twin sister, a man still hasn't found his sibling after years of searching.
A woman looks for her father, who slowly distanced himself from her following his divorce. Her mother has often defended his actions, believing that he wasn't ready to become a father.
A man looks for his sister after promising his dying mother that he'd find his long-lost sibling.
Teenage siblings look for their mother, with whom they lost contact after they were taken out of her care. The trio are hoping to find her in order to offer her a second chance.
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A woman looks for the mother who abandoned her as a toddler to find out her reasons for leaving.
A woman looks for her half sister while grieving the loss of their father.
An adopted woman looks for her biological mother.
A woman looks for her half sister, whom she only met once, in hopes of gaining insight into their dad's life.