Gravity is a science fiction film starring Sandra Bullock and George Clooney as astronauts trapped in space after their space shuttle is destroyed. The story revolves around their struggle in trying to get back to Earth safely.
Dr. Ryan Stone (Bullock) is on her first space mission aboard the space vehicle Explorer. Her partner is Matt Kowalski (Clooney). The story starts as the pair go out of their shuttle and make some repairs on the Hubble Space Telescope. Radio communication from Earth orders them to go back to their vehicle as soon as possible because a Russian missile strike hit an old satellite and the debris is scattering throughout space with frightening speed.
A wreckage from the destroyed satellite hits their space shuttle and Stone is hurled through space. Kowalski rescues her and they return to their vehicle. After reaching the shuttle, they find out that it is heavily damage by the satellite debris and all of their crew mates have died. They then decide to use a manned maneuvering unit (MMU) to travel to the International Space Station (ISS).
After they reach ISS, the two discover that they can still use one of its Soyuz modules but the parachute of the vehicle is utterly useless. Devising another plan, they opt to use the Soyuz module to reach the Chinese space station Tiangong and from there, hitch on another Chinese module to get back to Earth. As they try to get to the ISS, the pair encounter problems with the Soyuz module and Kowalski sacrifices his life just to save Stone.
Stone manages to reach the ISS and consequently, the Soyuz module. She aligns the vehicle with Tiangong but it has no fuel. Stone tries to remedy the situation by attempting to communicate and get help from people on earth. As she resigns to accept her certain death, inspiration comes when Stone realizes that she can propel the Soyuz module towards Tiangong.
After encountering some mechanical difficulties, Stone reaches Tiangong and gets on board the Shenzou capsule that will take her back home. Stone launches the capsule but it catches fire as it flies towards earth. The capsule ends up in a lake where Stone comes out and swims towards the shore.