Jenna’s big accident is a distant memory, and she actually starts to feel normal again until a strange stalker brings her suicide stigma back to life. Jenna even starts to…

Team Scorpion must outthink their unstable ex-Scorpion member, Mark Collins, after he kidnaps Toby and threatens to kill him unless his cunning demands are met.

The BAU investigates when several young men and women are victims of disfiguring acid attacks. Also, Dr. Reid begins to settle into his new surroundings.