The Halo series centers around a war between humans and the alien Covenant. The games follow Master Chief, a cybernetically enhanced supersoldier, and his AI companion Cortana. The games involve ancient installations called Halos, massive ring-shaped structures built by an earlier civilization called the Forerunners to contain a parasitic alien threat known as the Flood. Cortana and Master Chief work to stop both the Covenant and Flood from activating the Halos and destroying all sentient life in the galaxy. The document also provides links to ending cutscenes for the first four Halo games.

1. Halo Isaac Jean Julien

2. About halo Halo is about a war that is going on between aliens and humans the aliens name is covenant The original trilogy of games center on the experiences of the Master Chief, John-117, a cybernetically-enhanced human super-soldier, and his artificial intelligence (AI) companion, Cortana. In this setting, the term "Halo" refers to Halo megastructures: large, habitable ringed structures, similar to the Orbitals in Iain M Banks' Culture novels, or to smaller versions of Larry Niven's Ring world In the past, an intelligent race called The Forerunners used their advanced technology to protect life, but were caught off-guard by an alien parasite known as the Flood. The Flood, which spread through infestation of sentient life, threatened and overran many worlds in the galaxy before the Forerunners could attempt to contain the threat. A group of Forerunners conceived a final solution—using an installation known as the Ark, they built seven large ring-shaped megastructures known as Halos. The Halo Array, when activated, would destroy all sentient life in the galaxy—depriving the Flood of their food. Delaying as long as they could, the Forerunners finally activated the rings and disappeared. In 2552, the Covenant arrive at Reach, the UNSC's last major stronghold, and launch an invasion of the planet. The last Spartans and UNSC military are unable to stop the Covenant from bombarding the surface with plasma. Following directives to avoid leading the Covenant to Earth, the artificial intelligence (AI) Cortana aboard the fleeing UNSC ship Pillar of Autumn selects coordinates that lead the ship to a Halo installation. The Covenant follow, damaging the Autumn and leading its crew to take the fight to the ring's surface. The Covenant accidentally release Flood imprisoned on the ring; in order to nullify the threat, the ring's AI caretaker, 343 Guilty Spark, enlists the help of the Spartan, Master Chief. Before the pair can activate Halo's defenses, however, Cortana reveals that Halo's activation would mean their own destruction. Master Chief and Cortana instead detonate the Autumn's engines, destroying Halo and preventing the escape of the Flood. They and a few other human survivors return to Earth, warning of an impending Covenant attack.

3. Ending for halo http://www.youtube.com/watch?v=uQ-EKBf85iI

4. Ending for halo 2 http://www.youtube.com/watch?v=e2yxC_kc0CM

5. Halo 3 ending http://www.youtube.com/watch?v=3LpbEr0E5hE

6. Halo 4 http://www.youtube.com/watch?v=TC2yMKMENdg coming to stores holiday 2012