Michael saves a man from drowning and learns his identity is a mystery. Meanwhile, Kate discovers a girl she mentors has serious issues that she has failed to notice.

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.