Harriet Welsch the spy (Jennifer Stone) ridicules their chef but loves her nanny Golly (Kristin Booth). She is competing with her nemesis Marion Hawthorne for the official class blog. Marion's simplistic blogs are outshining Harriet's tales of spying on unimportant people. Meanwhile her father is the new producer of the new Spy Teen 2 movie and teen heartthrob Skander. She hates the superficial ridiculous movies but she starts using Skander for her blog. The popularity of Skander rubs off on her blog. When she sees Skander throwing a fit on set, her blog climbs and so does trouble for her father. She goes into full spy mode on Skander and even pretends to be his friend much to Marion's chagrin. Skander is paranoid about being stalked. Harriet is also spying on Golly.

The production value is pretty bad. The Toronto for NYC is done very poorly. The acting is OK but it's nothing to write home about. Jennifer Stone has a good amount of pep, but the acting from the other kids fall off pretty quickly. If the movie looks poor, the movie within the movie looks even worst. It's a poor effort even for a Disney TV movie. There are too many annoying characters in silly situations that look ridiculous.