H M S Unseen

The most highly efficient and lethal underwater ship ever built, H.M.S. Unseen, vanishes into the depths while on a trai... (more)

The most highly efficient and lethal underwater ship ever built, H.M.S. Unseen, vanishes into the depths while on a training mission, baffling British and American military intelligence including wily National Security Adviser Admiral Arnold Morgan. (less)