ДНК S07E114 - Выпуск 987. Подменили шестого ребенка?

The mother of five children is sure that her sixth child was replaced at the hospital. She was finally convinced of this when the ultrasound doctor said that the baby had only one kidney. Although during pregnancy, the woman was examined three times and there were no pathologies in the fetus. So whose son is growing up in the family — native or alien?