A contemporary marine biologist becomes involved with Kirk and crew as they undertake a vital mission into Earth's past to save a species whose extinction poses a threat to the very existence of the planet. Forced to travel back to the San Francisco of 1986, the crew encounter a world as strange to them as any on their previous adventuresSpecial Features:Commentary by Roberto Orci and Alex KurtzmanPavel Chekov's: Screen MomentsStar Trek for a CauseStar Trek: Three Picture SagaStarfleet Academy SCISEC Brief 004: The Whale Probe