An engineer who relocates his family to Brazil for a hydroelectric dam project. After his young son is abducted by indigenous people, he spends a decade searching for him. He eventually reunites with his son, learns about his adopted life, and helps him rescue enslaved women while ultimately attempting to destroy the dam to protect the tribe.
Heather is Bill Markham's daughter, present during the family's initial life in Brazil.
Bill Markham attends Tomme's wedding to Kachiri and accepts her as family despite his initial grief.
Bill Markham is the biological father of Tomme, who was abducted as a child and raised by an indigenous tribe.
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