▁explained : ▁ ▁Plot ▁ ▁When ▁K itt y ▁P ry de ' s ▁group ▁of ▁time ▁disp la ced ▁Original ▁Five ▁( O 5 ) ▁X - Men ▁and ▁Cy clo ps ' ▁Un c anny ▁X - Men ▁are ▁forced ▁to ▁team ▁up ▁to ▁stop ▁an ▁out ▁of ▁control ▁new ▁mut ant , ▁young ▁Cy clo ps ▁is ▁killed ▁by ▁a ▁S entin el . ▁ ▁He ▁is ▁res ur rect ed ▁moments ▁later ▁by ▁one ▁of ▁Cy clo ps ' ▁rec ruits , ▁who ▁is ▁a ▁he aler . ▁However , ▁in ▁the ▁brief ▁moments ▁that ▁Young ▁Cy clo ps ▁was ▁dead , ▁the ▁adult ▁Cy clo ps ▁bl ink ed ▁out ▁of ▁existence ▁and ▁the ▁world ▁around ▁the ▁two ▁groups ▁suddenly ▁began ▁to ▁sh ud der ▁and ▁sh ake , ▁as ▁if ▁reality ▁was ▁col laps ing ▁from ▁the ▁time ▁par ado x . ▁ ▁This ▁causes ▁another ▁round ▁of ▁debate ▁from ▁Wol ver ine ' s ▁X - Men ▁about ▁returning ▁the ▁O 5 ▁to ▁their ▁proper ▁place ▁in ▁the ▁tim eline . ▁The ▁debate ▁is ▁suddenly ▁interrupted ▁by ▁the ▁arrival ▁of ▁a ▁group ▁of ▁older ▁X - Men ▁led ▁by ▁an ▁aged ▁K itt y ▁P ry de , ▁the ▁grand son ▁of ▁Charles ▁X avier , ▁and ▁an ▁adult ▁Jean ▁Grey ▁( the ▁time ▁disp la ced ▁O 5 ▁Jean ▁Grey , ▁having ▁never ▁returned ▁to ▁the ▁past ), ▁dressed ▁as ▁the ▁new ▁X orn . ▁ ▁They ▁seek ▁to ▁force ▁the ▁X - Men ▁to