James, a boy with an over-active imagination, tricks his tutor into spending their first session searching for his runaway twin brother who doesn't actually exist.
When the crew of the Enterprise is called back home, they find an unstoppable force of terror from within their own organization has detonated the fleet and everything it stands for, leaving our world in a state of crisis.
Using massive piloted robots to combat the alien threat, Earth's survivors take the fight to the invading alien force lurking in the depths of the Pacific Ocean.
Dr Ryan Stone, an engineer on her first space mission, and Matt Kowalski, an astronaut on his final expedition, have to survive in space after they are hit by debris while spacewalking.
Life for former United Nations investigator Gerry Lane and his family seems content. Suddenly, the world is plagued by a mysterious infection turning whole human populations into rampaging mindless zombies.