Vash shows up on the Enterprise, with a message from Q that she promised Q that she would deliver at a specific place and time. The message explains that somehow the Borg have assimilated some cosmic macguffin, and using it, they managed to capture him and are attempting to assimilate him!
But, he knew this would happen a long time ago, but was unable to completely avert it for [fixed point in time/reasons/whatever]. So instead, he set up an escape plan for himself for when it ultimately did happen. And that has been the main reason he has been interacting with the crews of the Enterprise and of Voyager the whole time. (The Voyager connection could be brought in with some snide remark about what great fun they were to play with although they didn't always know it was him - "Why, Jean-Luc, at one point I even made them believe that if they went too fast they would turn into salamanders!") The trial, flinging them across space and introducing them to the Borg, giving Riker the powers of Q, the lesson he taught Picard about cause and effect in All Good Things, arranging for Voyager to get home early with additional large amounts of knowledge about the Borg, etc and so on - all of it was to prepare them to save his hide!
Anyway, the Borg are about to start using the cosmic dohicky to start accessing his powers, trying to learn how to use them, and when they do, things are going to get wonky, because they don't know how to control them, and without that ability, things will begin manifesting from more of less random parts of the Collective's databases and subconscious. But he has arranged it so that the Enterprise and her crew will be protected from any changes to reality, and he charges them with stopping the Borg from destroying the multiverse - and freeing him, too, of course.
4 hours long with a 6 hour director's cut, guest shots that feature characters not just from anywhere in the Star Trek universe but beyond, as well. (A movie where an R2 unit floating in debris at one point makes sense!
) A flight of fantasy and sci-fi cutting across something like Dante's Inferno mixed with the John Ritter movie Stay Tuned and what would happen if you turned an Improbability Drive on without the shields in place, and with a budget of 2 billion dollars. And in the end, Q rewards the crew with their fondest desires, but GOOD stuff, not all hamfisted like when Riker had the powers, and one of these rewards is that Data is finally made human - and looks nothing like Spiner, but like some other younger actor who wants to keep making Star Trek, like maybe Jim Parsons. 
Urinalyisis, Mr. Spock?
But, he knew this would happen a long time ago, but was unable to completely avert it for [fixed point in time/reasons/whatever]. So instead, he set up an escape plan for himself for when it ultimately did happen. And that has been the main reason he has been interacting with the crews of the Enterprise and of Voyager the whole time. (The Voyager connection could be brought in with some snide remark about what great fun they were to play with although they didn't always know it was him - "Why, Jean-Luc, at one point I even made them believe that if they went too fast they would turn into salamanders!") The trial, flinging them across space and introducing them to the Borg, giving Riker the powers of Q, the lesson he taught Picard about cause and effect in All Good Things, arranging for Voyager to get home early with additional large amounts of knowledge about the Borg, etc and so on - all of it was to prepare them to save his hide!
Anyway, the Borg are about to start using the cosmic dohicky to start accessing his powers, trying to learn how to use them, and when they do, things are going to get wonky, because they don't know how to control them, and without that ability, things will begin manifesting from more of less random parts of the Collective's databases and subconscious. But he has arranged it so that the Enterprise and her crew will be protected from any changes to reality, and he charges them with stopping the Borg from destroying the multiverse - and freeing him, too, of course.
4 hours long with a 6 hour director's cut, guest shots that feature characters not just from anywhere in the Star Trek universe but beyond, as well. (A movie where an R2 unit floating in debris at one point makes sense!
) A flight of fantasy and sci-fi cutting across something like Dante's Inferno mixed with the John Ritter movie Stay Tuned and what would happen if you turned an Improbability Drive on without the shields in place, and with a budget of 2 billion dollars. And in the end, Q rewards the crew with their fondest desires, but GOOD stuff, not all hamfisted like when Riker had the powers, and one of these rewards is that Data is finally made human - and looks nothing like Spiner, but like some other younger actor who wants to keep making Star Trek, like maybe Jim Parsons. Urinalyisis, Mr. Spock?
