For the second season Columbo episode of the same name, see List of Columbo episodes.
"Dagger of the Mind" is a first season episode of Star Trek: The Original Series. It is episode #9, production #11 and was broadcast November 3, 1966. It was written by Shimon Wincelberg (under the pen name "S. Bar-David"), and directed by Vincent McEveety.
The plot concerns the Enterprise visiting a prison planet where a new treatment for the criminally...
Adams tells Jim there is no need to surrender his phaser.
On the penal colony, Jim introduces Helen and himself to Adams.
Helen is about to suggest they act informal. Jim discourages the thought.
Jim doesn't appreciate McCoy setting him up. he sends a message via Spock.
Jim and Spock enter the transporter room. Jim is surprised to find Dr. Helen ...
After backing Jim into a corner. Bones apologizes.
Jim and McCoy disagree with each other. McCoy throws down the gauntlet.
Jim receives an explanation from the famous Dr. Adams about why Van Gelder be...
Jim returns from sickbay to find that Spock has gained interesting informatio...
McCoy asks Van Gelder what he means by erased.
Van Gelder tries to tell them about himself, but reciting his memories appear...
Jim tells McCoy he won't be studying Van Gelder. Van Gelder responds to Jim's...
Van Gelder burst onto the bridge, overpowers the security guard and aims a ph...
McCoy responds to Spock pointing out the violent and contradictory nature of ...
Spock points out contradictions in earth culture to McCoy.
Jim asks McCoy if he's visited a penal colony of late. He responds to Jim's q...