The Secret History of Cobra Commander! Baroness leads newest recruit cobra mysterious siren on a journey through the history of the earliest days of COBRA ... but what is the secret of the sirens?

The Secret History of COBRA! In the period after the New York attack cobra Baroness leads a new up-and-coming officer called siren around the world and in the past! SIREN reveals the secrets of the previous COBRA commanders and comes face to face with one of the current ruthless!