Here's a quick rewrite, if it's any help. Just spit-balling; not trying to say it's any better necessarily. Also, I think the term "intergalactic" implies that they operate across multiple galaxies. 'Intragalactic' might sound somewhat strange, so maybe a different title would fit better.

It is a time of foreboding for the galaxy. After centuries of peace, many isolated star systems have been attacked by the intergalactic Slave Trade Federation.

Queen Amidala of the peaceful planet Naboo has managed to escape her home system with the assistance of two Jedi, guardians of peace and justice in the Galactic Republic.

To prevent further oppression from the Federation, she must venture to the galactic capital to plead for intervention to save her people and restore peace to the galaxy....