Wi-Fi and electricity trigger Carmen's strange symptoms. Jamison hasn't left his room in two years. Bekah lives in a van in the desert to avoid mold.

Star has been diagnosed with a dozen different conditions. Bekah's brother arrives to take care of her. Jamison's family searches for a specialist.

Jake, a young musician, suffers from symptoms associated with Lyme disease. Star undergoes treatment for dystonia. Carmen tours a cellphone-free town.

A healer treats Pilar over the phone. Jake and his girlfriend drive 10 hours to a clinic. A friend worries that doctors are taking advantage of Jill.

Pilar, an actress with chemical sensitivities, lives apart from her husband. Jake and Bekah encounter skeptical doctors when they seek emergency care.

Jill, a therapist, takes up to 55 supplements a day. Star's two-week treatment costs $11,000. Pilar's husband gets a second job to cover their expenses.

Jill considers a $30,000 treatment plan. Bekah gets a new custom home. Pilar, Star and Carmen's health improves, and Jamison and Jake reach milestones.