Carter trains one of Benton's new students, Deb Chen. Hathaway has her hands full with an emotionally challenged patient who's obsessed with colors. A sociologist provokes people to measure their reaction times for a study. Kayson brings charges against Susan in the Vennerbeck death, leading Morganstern to question Susan's assertiveness. Benton and Walt hunt for Peter's missing mother.
Casts:
Parminder Nagra, Linda Cardellini, David Lyons, Angela Bassett, Maura Tierney, John Stamos, Scott Grimes