Dome Eight

After the cold war went hot humanity had to flee the uninhabitable surface. A series of American domes were built in the Atlantic for just this purpose. All the domes were meant to be interconnected reliant on each other for the necessities of life. But not long after people have moved into the domes they're forcefully separated. Twenty years later a young man must find out what happened to his father. He must retrace his father's steps with the aid of his two closest friends. However this leads him outside the dome where he's spent his entire life. While exploring the endless blue they discover something none of them had expected.