Star Trek: Invasion!

Long ago, even before the days of myth and legend, our worlds belonged to them. Now they want them back… Captain Kirk is stunned when the Federation receives an urgent plea for help—from the Klingon Empire. A mysterious starship has invaded Klingon space and resisted all their efforts to destroy it. Establishing contact with the stranger's ship, Kirk discovers that it is only the vanguard of a vast alien fleet obsessed with conquering the Klingons, the Federation, the Romulans, and all who dwell in the space that was once their own. The invasion has begun…

Decades after the original starship Enterprise had warded off the conquering Furies, who once owned the entire Alpha Quadrant, Captain Picard and his crew face a second confrontation and become subject to the aliens' mind-altering powers.

Millennia ago, an apocalyptic battle was fought in the Alpha Quadrant. The losers were banished, but what became of the victors? The Federation is threatened by this ancient mystery when a battered and broken version of the Defiant is found, frozen for five thousand years, in an icy cloud of cometary debris. Captain Sisko and the crew of Deep Space Nine are summoned to answer the most baffling question of their lives: how and when will their ship be catapulted back through time to its destruction? And does its ancient death mean that one of the combatants in a primordial battle is poised now to storm the Alpha Quadrant? Only the wormhole holds the answer—and the future of the Federation itself may depend on the secrets it conceals.

For ages they have sought to claim our worlds. Now, at last, we take the battle to them… Far from the Federation's desperate war against the invading Furies, the crew of the U.S.S. Voyager encounters something they never expected to hear again: a Starfleet distress call. The signal leads them to a vast assemblage of non-humanoid races engaged in a monumental project of incredible magnitude. Here is the source of the terrible invasion threatening the entire Alpha Quadrant—and, for the Starship Voyager, a possible route home. But soon there may not be any home to return to… The epic conclusion to the greatest crossover saga of all time!