With a powerless shuttle that is under attack by the planet's primitive natives and realizing that the Enterprise will be forced to stop searching for them, Mr. Spock, Dr. McCoy, and Scotty search for a way out of their situation. Meanwhile, Captain Kirk pushes the search for his missing crew members to the very last second available to him.

Reimagines the episode "Where no man has gone before" from the original "Star Trek" television series in the alternate timeline created by the 2009 film. When the U.S.S. Enterprise encounters an unknown force that hits the ship, crewman Gary Mitchell is transformed into a psychic being that may pose a danger to the ship and its crew.