Over the course of five seasons, “Stranger Things” has become a Netflix phenomenon. Unlike “Stranger Things,” the pair’s new show has nothing to do with the supernatural, but is set within the world of espionage. “One of the most beautiful things about [‘Stranger Things’] was people love that show and they loved Hopper and Eleven. They loved that relationship,” Harbour explains. In addition to starring in the series, both Brown and Harbour will be executive producers on the project.