When a Martian spacecraft lands on Woking Common, mankind is terrorized by aliens in tall, armored capsules which stalk the countryside on three legs. The machines wreak havoc on London and the Southern Counties, and survivors are driven underground. Scientist John Nicholson tells how he was plunged into a paralyzing nightmare of stark terror, savage madness and utter destruction.

Once again, the Earth is under attack. An alien species is poised for a final assault. The survival of humanity depends on a military genius who can defeat the aliens. But who? Ender Wiggin is a brilliant, ruthless, cunning, a tactical and strategic master, and a child. Recruited for military training by the world government, Ender's childhood ends the moment he enters his new home: Battle School. How will Ender perform in real combat conditions?...

The battle against the evil Empire rages on as heroic men, women, and aliens of Rebel Alliance continue their struggle to end the era of darkness. But now a mysterious visitor comes to the Rebel fortress located atop Mount Yoda, bringing ominous news.

Following an attack by Martian invaders, a man named George is forced to find a way to survive a planet-wide war.

Newly graduated Lieutenant Shivani Singh is sent to the front lines on the edge of zerg space to fight for the Dominion. When a routine patrol goes sideways, Singh embarks on a mission to uncover threats to the fragile peace between the Dominion and the zerg Swarm. She soon learns that traditional military tactics and policies don't work in the lawless land she finds herself in.

The factions of the Band of Brothers and Goonswarm are constantly at war, and their actions have led to the Great War. But when a spy betrays the Band of Brothers alliance, things will never be the same.

Following the events of Master Chief's return in the video game "Halo 4," Captain Lasky and Commander Sarah Palmer of the UNSC "Infinity" are assigned a peace-keeping role in negotiations between Brutes and Elites from the formerly hostile Covenant. The peace talks are ambushed, and a plot of treachery decades old comes to light.

UNSC Infinity fights to protect humans against such villains as Jackal pirates and the Didact. Based on the "Halo 4" video game.

For years the Garde have fought the Mogadorians in secret. Now all of that has changed. The invasion has begun. If the Garde can't find a way to stop the Mogs, humanity will suffer the same fate as the Lorien: annihilation. There is still hope. When the Elders sent the Garde to Earth, they had a plan, which the Garde are finally starting to understand. In the climax of The Revenge of Seven, a group of the Garde traveled to an ancient pyramid in Mexico...

Contains four stories in the "Mass Effect" series which follows the exploits of Cerebus agents James Vega, Tali'Zorah, Garrus, and Liara T'Soni who go on various individual adventures involving their homeworlds.