An inter-dimensional rescue mission – with dinosaurs! When the Future Foundation discovers a distress beacon from another dimension, they turn to the heroes best suited to help: the X-Men! But these are strange times for both teams: the X-Men are aligned with their arch-nemesis Magneto, while the FF has forged an uneasy alliance with their own eternal enemy, Dr. Doom. When the two teams hop dimensions to rescue Cyclops’ ex-girlfriend, sea captain Lee Forrester, they encounter dinosaurs, alien invaders and an old friend in Skull the Slayer. But what is the greatest threat? The dinosaurs? The aliens? Or Doom and Magneto? Plus: the mutant super heroes meet the new Ghost Rider! Collecting X-MEN (2010) #15.1 and #16-19.