Meanwhile, Dr. Catherine Halsey, the SPARTAN-II project's creator, along with the SPARTAN Kelly-087 arrive in the Onyx system. As they near the surface of the planet they are attacked by more robot drones and crash, meeting up with the human survivors of the attacks.
Simultaneously, Dr. Catherine Halsey, the mastermind behind the SPARTAN-II program, joins forces with the SPARTAN Kelly-087 as they enter the Onyx system. As they draw closer to the planet's surface, they are met with a fierce counterattack by more robotic drones and crash-land, teaming up with the human survivors of the attack.