Star Trek Voyager - The Farther Shore

the long version

When an unstoppable Borg plague breaks out upon Earth, blame quickly falls on the newly returned crew of the starship USS Voyager. Did Kathryn Janeway and the others unknowingly carry this insidious infection back with them? Many in Starfleet think so, and Seven of Nine, in particular, falls under a cloud of suspicion. Now, with a little help from the Starship Enterprise, Admiral Janeway must reunite her crew in a desperate, last-ditch attempt to discover the true source of the contagion and save Earth itself from total assimilation into a voracious new Borg Collective. But time is running out. Has Voyager come home only to witness humanity's end?