Sharon appears to be a normal 17-year-old girl with good grades, many friends, and a wonderful personality - hardly someone you think would be considering suicide. But her home life is constrained by the pressures and expectations of her parents. She slowly spirals downward, her mother at one point telling her that she has no business being unhappy. So, she gulps down a bottle of sleeping pills. She is saved, but for how long?
A group of scientists are sent on a mission to destroy unstable planets. Twenty years into their mission, they have to battle their alien mascot as well as a "sensitive" and intelligent bombing device that starts to question the meaning of its existence.