WHEN TIME RAN OUT! It was a catastrophe that led to the end of both the Ultimate and Marvel Universes and birthed the conflict known as SECRET WARS! But not every story of those dark days has yet been revealed! In the first of five one-shots harkening back to that period, witness what happens when the universe of the mutant-ascendent HOUSE OF M intersects with that of the DAYS OF FUTURE PAST! In eight hours, only one can survive, or both will collide and be utterly annihilated! This devastating choice is left in the hands of Kate Pryde!