As of my knowledge, "Spider-Man: Across the Spider-Verse" is an upcoming film, with the first part scheduled to be released in 2022. Therefore, as an AI language model, I do not have access to the specific details or the ending of the movie.
"Spider-Man: Across the Spider-Verse" is an upcoming animated superhero film, which is the sequel to the 2018 film "Spider-Man: Into the Spider-Verse." As an AI, I do not have real-time information on unreleased films. As of now, the film has not been released, so I cannot provide a summary or details on how it ended. To find out how "Spider-Man: Across the Spider-Verse" ends, you will need to watch the movie when it becomes available.
