While delivering medical supplies to Dramia I, Doctor McCoy is arrested for allegedly causing a deadly plague which once ravaged the planet Dramia II.

William Shatner (Captain James T. Kirk)
Leonard Nimoy (Commander Spock)
DeForest Kelley (Dr. Leonard H. McCoy)

George Takei (Lt. Hikaru Sulu)
Nichelle Nichols (Lt. Uhura)
Majel Barrett (Nurse Christine Chapel)
James Doohan (Lt. Cmdr. Montgomery Scott)
Lou Scheimer (Commander Demos)

• Nineteen years earlier, McCoy created an innoculation for a Saurian virus on Dramia II. After he left Dramia, a plague wiped out the entire population, except for one.