After a quarrel together with her fiance, Michelle (Mary Elizabeth Winstead) departing from New Orleans and a experience up in a rural space of Louisiana. Late at evening, she is flip the radio on and there will probably be blackouts in main cities. Distracted by a cellphone name from her fiance, Michelle falls sufferer to an accident and loses consciousness. She wakes up in a cement room chained to a wall and is approached by a person named Howard (John Goodman) who tells him why he is there.
He claims that there was an unknown assault and he introduced her to his bunker after he discovered her on the highway to save lots of her life. Michelle meets and Emmett then, one other survivor who witnessed the assault and was in flip saved by Howard. During dinner, Michelle I is unsure that inform the reality, Howard’s key steals and înceaercă to flee from that bunker.
While doing this, she meets with one other girl named Leslie. It suffers from a extreme pores and skin an infection and begs to be allowed to enter the bunker. When Leslie dies from infections that Michelle realized that Howard was proper and decides to remain. As time passes, the three attempting to regulate dwelling underground and Michelle Howard is his daughter, Megan. When the air filter breaks down, Howard asks Michelle to crawl by way of air ducts to reset the system. There, nonetheless, Michelle makes a brand new discovery disturbing.