Halo 4 (2012)
"Halo 4" takes place four years, seven months, and ten days after the events of "Halo 3," a mysterious energy passes through the aft section of UNSC Forward Unto Dawn. Cortana activates John-117's cryopod as an unknown assailant boards the ship. After progressing through part of the ship the assailant turns out to be the Covenant, to which Cortana expresses concern as she believed that humanity had a cease fire with the Sangheili. As John-117 fights his way through the Covenant boarders, it is revealed that it isn't one rogue Covenant ship on a salvage operation, but an entire fleet orbiting a Forerunner world. Cortana notices the nearest cruiser has it's shields down and suggests firing a tactical nuke at it. Immediately after the cruiser is destroyed, a passage into the planet opens and activates a gravity well that begins to pull every ship in. The already weakened Forward Unto Dawn starts to disintegrate as it passes into the planet. While making their way to the escape pods, Cortana starts acting erratically. However upon reaching the pods, a Covenant cruiser collides with the Dawn, tearing through the escape pods. The hull breach sucks the Spartan outside just as the wreckage passes through.
John-117 awakens to find himself inside the planet. Cortana reveals her behavioral problem is due to her going into the first stages of Rampancy. John-117 suggests trying to find a ship back to Earth to see if Dr. Halsey, Cortana's creator, can fix her condition. ...
Did You Know? "Halo 4" is very similar to "Halo: Combat Evolved" in storyline as the Master Chief wakes from cryo sleep on a boarded ship (Pillar of Autumn/Forward Unto Dawn) and crashes on a Forerunner Installation (Installation/Requiem) to awaken an Ancient Evil (the Flood/the Ur-Didact).