Captain Kirk must learn the limits to the power of a 17-year-old boy with the psionic ability to create anything and destroy anyone.
Episode rating
Cast of episode
- Captain James Tiberius 'Jim' Kirk
- Mister Spock
- Charlie Evans
- Dr. McCoy
- Yeoman Rand
- Uhura
- Captain Ramart
- Tom Nellis
- Navigator
- Tina Lawton
- Crewman I
- Crewman II
- Melkotian
- Lieutenant Hadley
- Lt. Brent
- Kahless
- Engineer
- Operations Division Lieutenant
- Lieutenant Leslie
- Enterprise Chef
- Sulu
- Crewman
- Mrs. Johnson