Kitty Pryde's faith in Wolverine's Jean Grey School is eroded. With her students gone, what is Kitty to do? Meanwhile, X-23 is back, joining the All-New X-Men and-- kissing Cyclops?! What does this mean to Jean Grey? When Jean and X-23 are forced to team up against a mysterious force, she'd better figure it out fast! Plus: Ring in the X-Men's 50th anniversary with some of the greatest creators to ever work on Marvel's mutants!