Volume 5 - "Crossover!" Collects Ultimate Fantastic Four (2004-2009) #21-26. Written by MARK MILLAR. Art and Cover by GREG LAND. Even in their short careers, the Ultimate FF have seen a lot of amazing things - but nothing will prepare them for the world they're about to enter! Reed Richards has used his scientific genius to contact an Earth in a surprisingly familiar parallel dimension - and he's ready to visit! Softcover, 144 pages, full color.