The War of Four Cities escalates, and we learn what it is that the FF fears most! The Future Foundation is caught in the middle as the war expands to encompass the entire Marvel Universe! Plus: Black Bolt is back and is determined to reclaim his throne. Ben Grimm returns to the pages of the FF as Ronan the Accuser and the armies of the Kree empire invade the earth! A Galactic empire is born as the war of Four Cities comes to a close. What does it mean for Marvel's First Family? Collecting: FF 6-11

Superstar writer Jonathan Hickman revamps and redefines Marvel's First Family! The War of Four Cities escalates, with the Future Foundation caught in the middle! But as the Inhumans return to Earth and Annihilus' forces and the Kree armada lay siege to the planet, will the coming of Galactus turn the tide...or doom us all? As the Future Foundation contends with the Council of Reeds and the Mad Celestials, Valeria turns to their greatest foe! Find out why all hope lies in Doom! And in the aftermath of an endgame beyond imagination, the FF explore the furthest reaches of the Marvel Universe - from Wakanda to the Negative Zone, from the past to the future! And as the Fantastic Four are reunited, Hickman's groundbreaking run comes to an explosive end! Collecting: FF 6-23, Fantastic Four 600-611, 605.1