After getting in a car accident, a woman is held in a shelter by a man who claims that the outside world is affected by a widespread chemical attack.
 
Feel free to take a stroll down Cloverfield Lane.
 
FUN FACT:  The name of the gas station Michelle stopped at to refuel is named "Kelvin". This is an Easter Egg J.J. Abrams slips into all his projects, a tribute to his maternal grandfather Henry Kelvin, who owned an electronics company and influenced Abrams as a boy.