The story explores the heavy price of greatness as Ollie leaves behind his wife and young son for a decade-long voyage into deep space. While the mission pushes the boundaries of science, the spacecraft's isolation prompts Ollie to reflect on his childhood, his time in the Royal Navy, and the family he left behind. He grapples with the realisation that while he is reaching for the stars, the world he knew is moving on without him. Ultimately, the book is a study of sacrifice and the difficult choice between personal legacy and human connection. It asks if reaching your ultimate goal is worth losing your place in the lives of those you care about.