A platoon of American and Finnish soldiers is driven deep into a Russian forest where its Captain discovers a terrifying secret.

One misty morning, Liz Dunn stumbles down the road to her school and screams for help. A police psychologist gets her to reveal her story: A month earlier: three rebellious teenagers - Mike, Frankie and Geoff are trying to ditch the school field trip to Wales. The school nerd Martin helps them out by allowing them to stay in an old war bunker for the three days on the condition that his friend Liz joins them. The teens go down, party and have great fun but Martin doesn't return to let them out and they hope and pray that someone will find them...

In the near future, breathable air is nonexistent. Virtually all of humanity has disappeared and those chosen to reestablish society reside in a controlled state of suspended animation. Two engineers (Norman Reedus and Djimon Hounsou) tasked with guarding the last hope for mankind struggle to preserve their own sanity and lives while administering to their vital task at hand.

After getting in a car accident, Michelle awakens to find herself in a mysterious bunker with two men named Howard and Emmett. Howard offers her a pair of crutches to help her remain mobile with her leg injury sustained from the car crash and tells her to "get good on those" before leaving the bunker. She has been given the information that there has been an alien attack and the outside world is poisoned. However, Howard and Emmett's intentions soon become questionable and Michelle is faced with a question: Is it better in here or out there?

After several mysterious accidents, A Live Action Role Playing game is interrupted and the players leave the bunker while the staff remains behind to investigate the disappearance of Greg, the mastermind of the game.

After a deadly virus wipes out most of humanity, the survivors are forced to wait in self-sustaining bunkers with a networked video interface for communication, but one by one, they start mysteriously disappearing.

A teenage girl is abducted and held in a forest in an underground bunker by a sexual predator.