Shocking secrets from the Invisible Womans past are revealed! Years ago, Susan Storm Richards undertook an espionage mission for S.H.I.E.L.D. and now its up to her to save her former partner from death at the hands of international terrorists! The Invisible Woman must form an unlikely and uneasy alliance with another heroine who knows a thing or two about staying hidden: the Black Widow! Together the two will comb the lush palaces and back alleys of the seedy island nation of Madripoor but what they discover will shake the Invisible Woman to the core and turn her mission upside down! Collecting INVISIBLE WOMAN #1-5. Rated T