Young spy Harriet Welsch crosses paths with popular student Marion Hawthorne as the two girls vie to become the official blogger of their high school class. Jennifer Stone, Vanessa Morgan, Wesley Morgan, Kiana Madeira, Kristin Booth, Doug Murray, Jason Blicker Added on Peacock 2021-12-17, leaving 2024-04-01. Added on Amazon Prime 2022-08-26.