Bree can't wait for her first day at her new middle school, Enith Brigitha, home to the Mighty Manatees--until she's stuck with the only elective that fits her schedule, the dreaded Swim 101. The thought of swimming makes Bree more than a little queasy, yet she's forced to dive headfirst into one of her greatest fears. Lucky for her, Etta, an elderly occupant of her apartment building and former swim team captain, is willing to help.

Determined to reignite her waning friendship with a girl who has moved two towns away, an enthusiastic fangirl hatches an ambitious plan to ride her bicycle all the way to her friend's new school.