Star Trek: Deep Space Nine: Emissary

Commander Benjamin Sisko is just recovering from the death of his wife when he is assigned command over the former Cardassian, but new Federation space station, Deep Space Nine¿. This space station is strategically located not only because of its orbit about Bajor, but also because of its proximity to the only known stable wormhole in the galaxy. After meeting the other Bajoran and Starfleet personnel assigned to the station, including a former Bajoran freedom fighter and a shapeshifter, …