Complex sentence: Jack will infiltrate a fleet research project and allow Borglyn to get at its power source, in order to refuel his ship, and in return Borglyn will provide Jack with money and a smaller ship with which Jack can use to go his own way.
Split into simpler sentences: Jack will infiltrate a fleet research project and allow Borglyn to reach its power source, in order to refuel his ship. In return, Borglyn will provide Jack with money and a smaller ship, with which Jack can use to go his own way.