These big brothers all saved their siblings. In 2020, a big brother came to the rescue when his little sister was choking. He learned how to help her by watching Inside Edition. In 2020, a 6-year-old boy was a real-life superhero after saving his sister from a vicious dog attack. In 2016, an 8-year-old boy helped save his little brother from being kidnapped. Inside Edition Digital’s Andrea Swindall has more.