Season 2 - Star Trek: Deep Space Nine

In their second year together, the crew of Deep Space 9 face problems that will affect the galaxy forever. A Bajoran extremist group attempts to force the Federation out of the Bajoran system. The Cardassians are secretly supplying them with weapons, hoping to return to reclaim the planet and hold the Bajoran wormhole for the Cardassian Union. However, the greatest enemy of all is lurking beyond it.