The entire family supports Jazz's weight loss effort by having a family soccer match. Meanwhile, Jazz resumes hypnotherapy to control her binge eating; helps her friend raise money for hormones; and gathers the courage to ask out Victoria.
Jazz and her family head to New York City for a vacation and surgical consultation, but while the Jennings enjoy the sights, Jazz fears she may need to undergo a painful procedure. Later, Jazz and Greg argue over whether Jazz is ready for bottom surgery.
Learning she needs to lose 30 pounds to be eligible for bottom surgery, Jazz commits to losing weight. Later, Jazz and Jeanette participate in a debate over controversial research that suggests children shouldn't be placed on hormone blockers before puberty.
Jazz and Jeanette return home to the devastation left by Irma, and in an effort to help, Jazz and her parents drive to the Keys to help in the cleanup. Later, the family travels to San Francisco to meet with Dr. Bowers, who has some shocking news for Jazz.
In the Season 4 premiere, a new Jazz emerges, eager to expand her social circle and explore dating, but Jazz is also hiding a dark secret from her family that may come out to haunt her. Later, Hurricane Irma makes landfall in Florida, threatening the safety of the Jennings family.