Much like Endgame was the culmination of the MCU’s multi-phase Infinity Saga, Doomsday and its sequel, Secret Wars, are the concluding chapters of the franchise’s six-year-long Multiverse Saga. After Endgame ushered in major status quo changes with the departure of Chris Evans and Robert Downey Jr. (both of whom are now returning), it wasn’t immediately clear what direction the MCU would be taking next. Eventually, projects like Spider-Man: No Way Home and Dr. Strange in the Multiverse of Madness widened the scope of the series by introducing the Multiverse, a concept that’s provided an equal number of headaches and genuinely intriguing stories since it became a staple of superhero comics.
After confirming the Fox X-Men have their own specific universal designation in Deadpool and Wolverine and introducing a separate universe containing the Fantastic Four in First Steps, the first Doomsday trailer gave us a glimpse at what’s in store when worlds collide later in December. There’s no better time than now to revisit the crucial installments of the Multiverse Saga, considering each is a stepping stone to the multidimensional cataclysm that seems to be facing Marvel’s many characters. However, one MCU project in particular serves as a key to the convoluted roadmap of canon Doomsday is smashing together, and that project is Loki.