Two hundred miles up, a seemingly flawless docking between a Martian sample return craft and the space station Simulacra is interrupted by shouts of panic and a devastating explosion. Back on Earth, Wolverine’s sleep is interrupted by the Fantastic Four, who have come to the X–Mansion to request help in investigating the situation. The rude awakening almost turns into a free–for–all between the two super–teams before Emma Frost appears and brings the sniping to a psychically induced halt. After briefly considering the use of Cerebra to scan for survivors, Professor Richards asks Frost if she can take the Shiar–enhanced Blackbird into space to scan the station at close range, and after some prodding from Cyclops she consents. Naturally enough, when she, Sue Richards, the Thing, and three other X-Men board the station, it becomes apparent they must deal with more than a fuel tank explosion.
— Joe Trela