Watch Star Trek VI: The Undiscovered Country

Khan takes a starship and the Genesis device, and Spock dies in the reactor room; the film that saved the franchise.

Picard, Data and the Enterprise-D; "The Inner Light" and "The Best of Both Worlds".

A station at a wormhole and the Dominion War; the Trek that did serialised drama first.

Kirk, Spock and McCoy on a five-year mission across three seasons from 1966; "The City on the Edge of Forever" and "Balance of Terror".

A Starfleet ship thrown 70,000 light years into the Delta Quadrant; Janeway, the ex-Borg Seven of Nine and seven seasons of getting home.

Captain Pike's Enterprise a decade before Kirk, back to one story an episode after the serialised years.

The Borg follow the Enterprise-E back to 2063 to stop Zefram Cochrane's first warp flight; the best of the Next Generation films.

Abrams recasts Kirk and Spock, and a Romulan arriving from the future splits the timeline in two.