JT thinks Vincent may somehow be involved in Cat's homicide investigation after she mentions a local college fraternity brother was brutally killed. JT examines Vincent to determine the cause of his increasingly frequent blackouts, but when Vincent starts to beast out, JT is forced to tranquilize him. Meanwhile, Evan and his new intern find a strange cut on the victim's ankle, which matches that of a female cadaver left on campus a year earlier. As Evan works to uncover more clues from the crime scene, he is kidnapped. Cat begs Vincent to help find Evan and save his life, yet she doesn’t realize that she’s putting Vincent's life in serious danger.