There's a trespasser at Fillmore and a new security guard is hired. Ms. Snap and Ms. Bennigan hold a "Women Empowering Women" workshop, Mrs. Adler takes stranger danger too far, and Ms. Watson purchases a male safety dummy.

Mrs. Adler has to coach Fillmore's kickball team and is surprised to see a group of overly-confident dweebs show up. Principal Pearson reviews security footage and discovers the Teachers' skeletons in the janitor's closet.

Mrs. Adler and her husband move into a tiny house. When Ms. Cannon's homemade jewelry shop fails, Ms. Watson and Ms. Snap try to boost her morale. Ms. Feldman fakes a lesson and Ms. Bennigan struggles with a student.

After Mrs. Adler announces she's pregnant, we're taken back in time to the 1940s, where the women of Fillmore fight for better treatment at work.

Ms. Feldman can't make ends meet on her salary and takes a second job. Ms. Watson notices a romantic spark between two of her second grade students. The Teachers take advantage of Principal Pearson.

In this special musical episode, Ms. Snap changes the school lunch menu and Ms. Feldman starts an underground junk food ring. Hot Dad volunteers for lunch duty and Ms. Bennigan works up the nerve to ask him out on a real date.

Ms. Snap struggles with the idea of turning thirty-one and tries to regain her youth. Ms. Bennigan offers to babysit Blake for Hot Dad. The Teachers deal with every teacher's nightmare when the copier breaks down.

Ms. Bennigan decides to ask Hot Dad out during a chicken pox epidemic at the school. Ms. Snap discovers she has a gender bias.

Ms. Bennigan learns Hot Dad's son has to repeat second grade. Ms. Snap brings her dog to school as a therapy dog. When Ms. Feldman has to teach her students Common Core, she discovers it's more complicated than she thought.

Ms. Snap and Ms. Bennigan's relationship is tested when Ms. Bennigan and Hot Dad become official. Ms. Feldman and Mrs. Adler go on the hunt for Fillmore's most disturbing troublemaker.