Even with the cutthroat days of being Class Mom behind her, as a freshly minted mat mom of the Pioneer Middle School (PMS) wrestling team, Jen Dixon cannot catch a break. This year, as her son joins the ranks of the PMS wrestlers, Jen faces mystifying new social dynamics with her trademark combination of reluctance and resigned acceptance. The sights and smells of her son's wrestling matches are more than enough for her to deal with, but Jen also finds herself fully immersed in sports-mom competitiveness. These parents all seem perfectly unassuming until their kids start to wrestle, and then some become raging momsters. Jen steels herself for the indignities of middle school life, but she cannot quite fathom the extents to which some kids (and moms) will go for the sweet taste of victory. Add to this some truly bizarre encounters with students from her spin class and deeper challenges managing her parents, and Jen has more gum than she can chew...and even her riotously funny one-liners might not get her through it this time.