After being embarrassed over wearing a childish costume at a high school Halloween costume party and being ignored by the guys, Sue asks a flabbergasted Mike for his advice on what boys want when it comes to girls. Meanwhile, Frankie reluctantly volunteers to take Brick's socially awkward school social skills group trick-or-treating, and Axl and his friends devise a plan to trick rather than treat the neighborhood kids on Halloween.

Sue wishes for a big birthday bash for her Leap Year birthday. Meanwhile, Frankie learns that Mike has been taking care of a stray cat, Brick develops a crush at school, and Axl becomes fascinated with vacuuming.

Frankie has a difficult time describing herself during a job interview; Sue dispenses unwanted advice to Axl and his band mates; Brick joins the Prairie Scouts.

Mike tries to help after Frankie doesn't get a response to her texts to Axl, Sue gets an unexpected visit from Darrin, and Brick and his fellow classmates are afraid to use the school bathroom.