The threatened enemy offensive begins as the Separatists employ legions of droids into their attack. Even with reinforcements, the flesh and blood of the Republic forces are just no match for the battle droids' durasteel. Nowhere is this point more painfully clear than in the steaming Jasserak jungle, where the doctors and nurses of a small med unit face an impossible situation. As the dead and wounded start to pile up, surgeons Jos Vandar and Kornell "Uli" Divini know that time is running out.

On the planet Tython, the ancient Je’daii order was founded. And at the feet of its wise Masters, Lanoree Brock learned the mysteries and methods of the Force - and found her calling as one of its most powerful disciples. But as strongly as the Force flowed within Lanoree and her parents, it remained absent in her brother, who grew to despise and shun the Je’daii, and whose training in its ancient ways ended in tragedy. Now, from her solitary life as a Ranger keeping order across the galaxy, Lanoree has been summoned by the Je’daii Council on a matter of utmost urgency.

It is an age of exploration. Jedi travel the galaxy, expanding their understanding of the Force and all the worlds and beings connected by it. Meanwhile, the Republic, led by its two chancellors, works to unite worlds in an ever-growing community among near and distant stars. On the close-orbiting planets of Eiram and E’ronoh, the growing pains of a galaxy with limited resources but unlimited ambition are felt keenly. The two worlds’ hatred for each other has fueled half a decade of escalating conflict and now threatens to consume surrounding systems.

The Separatist Alliance, with ruthlessness and treachery, is beating the Republic to every strategic target. But after a costly clash with General Grievous for the planet Kothlis, Anakin has a mission that will focus his anxious mind. Alongside Obi-Wan Kenobi, he is posing as a long-lost native of Lanteeb, an impoverished world on the Outer Rim. This seemingly unimportant planet has drawn the interest of the Seps and Anakin, and Obi-Wan soon discover the disturbing reason.

The jungle planet of Haruun Kal, homeworld of the legendary Jedi Master Mace Windu, has become a battleground in the increasing hostilities between the Republic and the renegade Separatist movement. The Jedi Council has sent Depa Billaba - Mace’s former Padawan and fellow Council member - to Haruun Kal to train the local tribesmen as a guerrilla resistance force. But now the Separatists have pulled back, and Depa has not returned.