Star Trek Deep Space Nine - Betrayal

the long version

Ambassadors from all over the Federation have assembled on Deep Space 9 for a conference that will determine the future of the planet Bajor. Keeping dozens of ambassadors happy is hard enough, but when hidden terrorists start blowing up the station, Commander Benjamin Sisko must track a hidden enemy who strikes at will. Then things get even worse: A new Cardassian commander arrives, demanding the return of Deep Space 9 to the Cardassian Empire. With Deep Space 9 now a dangerous minefield, Sisko must defuse a situation that threatens the very existence of the planet Bajor.