Voyager returns to Earth after its long journey. A group of four Admirals arrive but strange things are already about. Tuvok begins having headaches and one of the Admirals locks the computer controls. Eventually The Doctor determines Admiral Kittum and his team are members of Species 8472. As they confront Kittum, Admiral Paris is also exposed as a fake. 8472 open a doorway to fluidic space.
The story of Voyager's return home has been told a couple times. Once as a fake out episode on the series and in a series of novels that continued the story of the Voyager crew past the series finale. The great majority of that continuity was rendered non-canon with the Picard series. I always felt it was a mistake removing the threat of Species 8472. They spent so much time establishing them as the next big bad, able to easily defeat the Borg... only to make friends with em and move on. I'm looking forward to seeing how things play out here. Already there is a good sense of continuity with the show.
seven out of ten.