The series Echo 3 follows Amber Chesborough, a brilliant young scientist who is the emotional center of a small American family. When she disappears along the border between Colombia and Venezuela, her brother and husband, two men with deep military experience and a complicated past, struggle to find her in a personal drama, facing off against the explosive backdrop of a secret war. It is based on the series When Heroes Fly by Keshet, created by Omri Givon and inspired by the novel of the same name by Amir Gutfreund.