Negotiations with Cortana break down and she sets her plans in motion, causing Osiris Team to race to the rescue.

The Warden takes drastic measures to keep Blue Team from Cortana.

Osiris arrives on Genesis and makes a new friend.

With the help of the Promethean Repair Droid, it’s time to hitch a ride on a Guardian to wherever Master Chief & Blue Team went.

In order to get that Repair Bot, we have to bring down a Covenant Kraken.

Blue Team reunites with Cortana, while Osiris races to save the Arbiter.

Blue Team arrives on the Forerunner Planet.

The “Guardian” is blasting off from the planet, with Blue Team on board. Meanwhile, Osiris Team has to make their own escape.

Osiris Team discovers that the locals managed to find some Promethean Ruins underneath the colony, and heads there to investigate further.

While on the trail of Blue Team, Osiris Team tracks them to an independent colony that is being attacked by the Prometheans.

Blue Team finishes its mission, only to discover some information to cause Master Chief to have them go AWOL.

Meanwhile, Blue Team, led by the Master Chief, is doing a search and destroy mission.

We’re introduced to Osiris Team engaging in an extraction deep behind enemy lines.