When a psychologically disturbed member of the staff of the Tantalus penal colony, Dr. Marcus Van Gelder, manages to escape onto the Enterprise, Captain Kirk and Dr. Helen Noel beam down to the planet to see exactly what is going on there. The head of the prison is a renowned penologist, Dr. Tristan Adams, greatly admired for the advances he has made in treating criminals. While Dr. Noel can find no fault with Dr. Adams or the practices at the colony, Kirk isn't so sure. Mr. Spock must use the Vulcan mind meld on Van Gelder to get to the truth. Written by
Did You Know?
Lethe (Susanne Wasson
) was named after the river in Hades in Greek myth. Those condemned souls who drank from it, forgot their past lives. Explaining her blank, vegetative stare from neutralizer "treatment". See more
When Van Gelder enters the bridge and demands asylum, the close up shots use red lighting on the actors. In the wide shots, the lighting is normal. See more
What did he do to us?
Dr. Simon van Gelder
He can reshape any mind he chooses. He used it to erase our memories, put his own thoughts there. He was surprised it took so much power. We fought him, remember? But we grew so tired. Our minds so blank, so open, that any thought he placed there became our thoughts. Our minds so empty, like a sponge needing thoughts, begging, empty. Loneliness. So lonely to be sitting there empty, wanting any word from him.