On standardized test day, Meredith and Principal Carl are distracted by the arrival of their ex-spouses.
Meredith and Principal Carl's friendship suffers when she argues with the parents of the school's most gifted student and refuses an order to apologize for her behavior. Meanwhile, Ginny is set on edge when Joel scratches her car and tries to charm his way out of taking responsibility for the damage.
Meredith tries to raise money to move into her own apartment by entering a secret teachers' betting pool for the annual student science fair and tipping the odds in favor of her chosen winner, Lily, by sabotaging the other students.
During the school's annual health week, Meredith sets her sights on a five-star vegan chef and enlists Irene's help to keep his interest when she realizes he's environmentally friendly. Meanwhile, Ginny coaches Principal Carl for the Faculty 50-Yard Dash.
After Meredith has a run-in with her ex-husband's new girlfriend, she ramps up her plan to re-marry by tricking Principal Carl into inviting her to join his "Divorced Dudes" support group, where she hopes one of the men is second marriage material.
Meredith gets jealous during the annual 6th grade student sleepover when she sees Joel flirts with another teacher.
After Meredith has a chance encounter with a hot guy in a coffee shop, she plans a class field trip to his office so she can see him again. At school, Ginny realizes Principal Carl's job is harder than it appears when he makes her Acting Principal for a day.
When the faculty faces district teacher evaluations, Principal Carl asks Meredith to assist Ginny with student engagement. Meanwhile, Lily tries to convince Irene that Meredith is taking advantage of her friendship.