Gravity Spoiler

After a major calamity, astronaut Dr. Ryan Stone (Bullock) is trapped in space and must find a way back to earth. The script starts out with her and a team working on preparing the Hubble Telescope for reentry to Earth along with the shuttle Atlantis. It's theorized that the Russian launched a missile to destroy one of its own satellites, when debris flying everywhere at rocket speed destroys everything in its path. After a series of setbacks and losing her whole crew, she manages to engage the craft and drift away from ISS, but the ropes of the parachute remain connected to the main station. 

Tethered to the Soyuz, she uses a drill to loosen the bolts and disconnect the rope. All the while, she must dodge debris that has begun flying around again. ISS is hit which results in an impact producing a hole that sucks the fire right out of it. 

As she reboards the Soyuz, the ISS splits in half after a crash. A tiny morsel hits her fuel tank creating a hole which reseals itself from the escaped liquid freezing. “I hate space,” Stone comments to herself. Losing fuel, she manipulates the thrust systems and sets her trajectory towards Tiangong 8, which is orbiting at a lower level than it should be. The engine module catches fire and she engages separation of the modules, leaving her in the cabin detached from the airlock, set in a direction where she will miss Tiangong 8. She makes radio contact with an elderly man speaking an unintelligible language. Though they can’t understand each other, Stone finds the man’s voice consoling. She loses contact with him and breaks down in tears. Thumbing through the operating manual of the Soyuz, she learns the craft has a breaking system, which she implements to improve her trajectory towards Tiangong 8. Once closer, armed with the fire extinguisher, she opens the hatch and is sucked out into space. Injuring herself and enduring a great struggle, she utilizes the extinguisher until it’s empty, and, eventually, manages to establish a hold on the station. 

She enters Tiangong 8’s airlock and depressurizes the cabin. She takes off her helmet and navigates the station to the docking module of the Shenzhou. She has a limited amount of time, as the station is dropping elevation towards Earth’s atmosphere. On her way, she saves a live amphibian, “No frog stays behind.” She boards the escape pod and takes a series of guesses to get the craft up and running. Flying debris finishes off the station, as Stone makes her escape. She breaks through the atmosphere and deploys the parachute. She celebrates and the thrust system softens her fall, as she lands in a lake. 

She releases internal smoke by launching off the hatch cover. However, the Shenzhou takes on water. She swims from the bottom of the lake, but her spacesuit drags her down. She watches the frog escape, as she is about to become ensnared in the parachute. She frees herself from her spacesuit and swims up to the surface and makes her way to shore. She is finally free.