A motley group of civilians, including a sailor, a mechanic, a historian, a former naval architect and a young YouTube star, are invited to Philadelphia's biggest event of the summer of 2022: The SS United States, once the world's fastest passenger ship, is about to set sail on her final voyage.What begins as a nostalgic trip aboard the venerable steamer soon turns into a desparate fight for survival. Sinister machinations are at work deep down in the bowels of the ship, and the forces pulling the strings will stop at nothing to achieve their goals.A race against - and through - time begins...