As our world unites against invaders from beyond the stars, beneath the Atlantic Ocean, another mysterious craft prompts a top-secret investigation by the US military, one which could prove the key to humanity's survival... or its ultimate destruction.

With fear and suspicion running rife aboard the sub, Adams prepares to embark the alien vessel in search of answers. But how will its extraterresterial crew react to unwanted visitors onboard?

Tensions arise aboard the sub as specimens are shipped back for study. Meanwhile, Adams and co. get to grips with their extraterrestrial armaments and discover the real motivation behind the alien crash…

With new secrets arising and the threat of extinction looming over the submarine crew, Adams is left with an impossible choice that could spell redemption for his comrades... or their total demise.

As Adams and his team make a last ditch attempt at preventing a global catastrope, back on the sub, chaos ensues as a renegade extraterrestrial takes control of the crew. Could this spell disaster for all? Find out in this harrowing final issue!