Uncanny X-Force: The Dark Angel Saga, Book 1

Apocalypses heir Archangel has picked up where his predecessor left off amassing an army of En Sabah Nurs greatest servants! The only hope X-Force have of saving Warren Worthington from the dark entity that inhabits his soul rests in a dimension where Apocalypse and his technology took over the world: the Age of Apocalypse! However before X-Force can obtain the thing capable of saving their friend they must defeat the Amazing X-Men! Plus: Magneto uncovers X-Forces existence and the only way hell keep their secret is if they assassinate a mysterious figure from his past! Why cant Magneto do the deed himself? The answer is buried in a terrible secret from the ashes of World War II. Collecting UNCANNY X-FORCE #8-13.