The Original Series: Season 2 (1967-1968)
S02E22

Return To Tomorrow

Stardate: 4768.3 Year: 2268

Telepathic aliens take control of Kirk and Spock's bodies.

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Broadcast: 9 February 1968
Format: Episode Prod #: 051
Writer(s): John Kingsbridge
Director(s): Ralph Senensky
Story Order: 219 | Correct Order: 52