London, England, April 1980. Six terrorists assault the Embassy of Iran and take hostages. For six days, tense negotiations are held while the authorities decide whether a military squad should intervene.

A hitman accidentally kills a little girl. Filled with regret, he wants to quit. But then to tie up loose ends, he is forced to go on another job, to kill the girl's mother.

In 2029, an elite police squad combats an anti-reunification terrorist group while another enemy lurks nearby.

Five Spec Ops, Alpha Squad, head a simple Recon Mission that turns into an all out war for survival against a wave of undead experiments. Alpha Squad must fight, not just for the sake of their own survival, but the fate of the world.