Frontier Day Attack

In 2401 a rogue faction of Changelings, embittered since the Dominion War, joined forces with the last remnant of the Borg Collective. The Changelings had stolen Jean-Luc Picard's original body, which still carried Borg genetic code, and secretly spread that code through Starfleet's transporters into young officers across the fleet.

On Frontier Day, as Starfleet's ships gathered near Earth and were linked into a single network, the Borg Queen activated the code. Young crew members were assimilated in an instant, seized control of their ships and turned them against the remaining crews and against Earth. Picard's son, Jack Crusher, who carried the same altered genes, was drawn to the Queen.

Picard and his former Enterprise crew restored the old USS Enterprise-D and found the Queen's cube hidden in Jupiter's Great Red Spot. Picard reached his son and brought him back, and the cube was destroyed, freeing the fleet. The Titan was later rechristened Enterprise-G.