

The students embark on finding nominees for "Principal for the Day," while a custodial strike leaves the school a mess. Meanwhile, Brooke fears she may be pregnant; and Sam, Carmen and Lily discover something personal about Harrison's mother.
In the series pilot, social opposites Sam and Brooke are paired as lab partners, to the delight of Carmen, who sees it as a chance for Sam to help her get on the cheerleading squad. Meanwhile, Brooke and Nicole plan the first party of the school year and star quarterback Josh tries out for the school play.
Carmen ditches school the day after the cheerleading roster is posted, and Lily refuses to dissect a frog in science class. Meanwhile, Josh's father embarrasses him at rehearsal; and Mary Cherry stalks Nicole.