Robin is in danger. He activated the quarantine protocol, which left the facility in a lockdown. Raven uses her powers to find Robin and to see what he is seeing from his eyes. Raven believes Robin's stress on his brain is destroying his body because he thinks he is fighting Slade. He thinks the Slade he can see is real.
Doctors discuss the current state of treatment for mental illnesses and reveal that there are gaps in our understanding of mental illness on the biological level. They experiment with a new surgical treatment for mental illness: deep brain stimulation (DBS).