Tensions between Sam's friends and Brooke's friends are leading to a rumble, but the guys intervene and lock the ladies in a school bathroom where secrets are revealed, new bonds are formed, and a friendship comes to and end.
News of April Tuna's sudden death make everyone face their prejudices about her and finally appreciate her. Josh is inducted into the secret Mullet Society. Sam learns that Harrison loves her. The new lunch lady may be Nicole's birth mom.
"Popular" does Dickens' Christmas Carol. Everyone is invited to Sam and Brooke's first joint annual Christmas party. Carmen breaks her ankle and can't try out for Glamazons. For being a Grinch, Nicole's visited by the ghosts of Christmas.
Josh must attend the autopsy of a drunk driver. Sam confronts Harrison over his prescription drug abuse only to learn that he might be dying. Ms. Glass takes on Nicole's team in the homecoming race. Carmen reconnects with her mom.
Josh's father forbids him to do the musical. Sam and Brooke are asked by a network TV producer to make a video piece on Josh. Now that Carmen is a Glamazon, April Tuna becomes her obsessive fan. The Glamazons take a driving test.
Harrison's roommate Clarence passes away sending Harrison into a depression that leads to a suicide attempt and a glimpse of what life would have been like if he had never been born, by his guardian angel.
Ms. Glass' "love computer" pairs up her students. Harrison and Nicole manipulate the list. Harrison must hang out with Cherry, while Nicole sabotages Sam and George's relationship. Lily and Josh hook up. Mike learns of Jane's pregnancy.
Harrison campaigns to save the job of the school's shop teacher when he puts his career in jeopardy by his announcement of plans for a sex-change operation. Meanwhile Cherry Cherry teaches a class at Kennedy High, Home Economics, to serve her community service.
A Sadie Hawkins dance has most of the students obsessing over their appearances, while Brooke considers asking a man of substance instead of going for looks.