Ryan Stone (Sandra Bullock), a brilliant engineer on her first shuttle mission, with veteran astronaut Matt Kowalski (George Clooney). On a routine spacewalk, disaster strikes. The shuttle is destroyed, leaving Stone and Kowalski completely alone - tethered to nothing but each other and spiraling into the blackness. The deafening silence tells them they have lost any link to Earth...and any chance for rescue. But the only way home may be to go further out into the terrifying expanse of space.