As the clash of the godlike beings continues, the captains face off in a series of war games that become much more lethal when Q introduces a fifth competitor-a Doomsday Machine! The biggest Star Trek crossover ever continues here. The crews of The Next Generation, The Original Series, Voyager, and Deep Space 9 come together to face their biggest challenge yet! Written by Star Trek: TNG: Mirror Broken scribes Scott & David Tipton! All the captains together for the first time!