Kaon Under Siege is an end-game Flashpoint available to both Empire and Republic players. It is the first part of the "Rise of the Rakghouls" story arc, with Lost Island being part 2.
Description[]
"An epidemic of rakghoul plague has broken out on several worlds in the Tion Hegemony, spreading like wildfire and consuming them. There is a single holdout, the world of Kaon, that is in desperate need of outside aid."