Distraught woman takes the Clinica staff hostage after Michael testifies for a former patient who he believed suffered uncontrollable urges due to a brain tumor.

When a spoiled pop star comes to Holt Neuro experiencing unusual symptoms, and a young girl at the Clinica exhibits similar symptoms on the same day, it forces both teams of doctors to try and piece together their common link.

When Michael's high school sweetheart comes to Holt Neuro with an irreversible condition, he will stop at nothing to try and save her, until Anna intervenes. Meanwhile, Zeke deals with the news that his best friend's cancer has returned.