It's senior year. And Margot's on a mission to be a better Margot. Which means saying goodbye to her old cleanup ways--and their inherent moral ambiguities.

To fill her time and round out her college application, Margot volunteers on a campaign for local election. It doesn't hurt that the local candidate is Shep Green, Avery's dad. It's nice to see Avery's too perfect face from time to time.

Meanwhile at Roosevelt High, Margot finds herself roped into a second election, this one for school president. But when a mysterious blackmail plot emerges, and a loathsome opponent rises in the class race, Margot might have to return to the cleanup job she thought she'd left behind.

She's tried to keep her hands clean. But politics is a dirty job.