Miles Morales gets bit by a Spider from another Dimension which makes him become Spiderman only problem there's only suppose to be 1 Spiderman for each world so Peter Parker gets help by Doctor Strange but Miles Morales have to fight the Sinister 6 when they attack but when The 3 Spiderman fought the 5 Villains it Created The Spot which made The Spider come to that world to bite Miles
