Stardate: the 23rd Century. Retired Starfleet officers James T. Kirk (William Shanter), Montgomery Scott (James Doohan) and Pavel Chekov (Walter Koenig) are guests of honour aboard the newly christened Enterprise-B. A test run takes an unexpected turn, however, when the starship encounters two vessels trapped inside the Nexus, a mysterious energy ribbon. During a perilous rescue attempt, Kirk is swept out into space.
Seven decades later, Captain Jean-Luc Picard (Patrick Stewart) and the crew of Enterprise-D rescue an El Aurian physicist named Soran (Malcom McDowell). Unbeknownst to Picard, Soran harbours a deadly plan that includes the destruction of the Enterprise and millions of lives. Now Picards's only hope for a future rests within the Nexus... and a legendary captain from the past.