Two sisters are exploring the deep blue sea until something goes wrong. As they submerge 47m they encounter a creature that only wants flesh and blood. As they fight their way back to the top, they shortly run out of oxygen. With only an hour left they're not only racing against time they are racing against life and death. Written by anthonybobb

Dr. Ryan Stone ( ) is a brilliant medical engineer on her first shuttle mission, with veteran astronaut Matt Kowalsky ( ) in command of his last flight before retiring. But on a seemingly routine spacewalk, disaster strikes. The shuttle is destroyed, leaving Stone and Kowalsky completely alone - tethered to nothing but each other and spiraling out into the blackness.