Listen up, we're about to get more X-Men goodness on our screens, thanks to the newest -- and final -- season of Marvel's animated anthology, What If..., which switches up storyline outcomes and timelines in ways we haven't seen.First introduced in 2021, the Marvel Cinematic Universe series bent realities for some your favorite superheroes, with plots drawn from a comic book line that ran from 1977 to 1984. The show partnered T'Challa and Yondu together, taking the king out of Wakanda and turning him into a space-traveling version of Star Lord. Season 2 brought Iron Man in for a death race against The Grandmaster, and this year has more surprises in store, like an appearance from Storm.It's a welcome addition after watching X-Men '97 and Logan in Deadpool & Wolverine this year, so MCU fans, get ready to be surprised and entertained. In this final batch of episodes, viewers will also see Agatha Harkness, Echo, Hulk, Red Guardian, The Watcher and, er, Howard the Duck.Down below, we're letting you know when to catch What If... season 3 on Disney Plus.Read more:Streaming Guide December 2024: You're Gonna Need Disney Plus, Netflix and These Other ServicesRelease date for What If... season 3Disney Plus is the place to be onSunday, Dec. 22, at 6 p.m. PT or 9 p.m. ET when Marvel's What If... season 3 premieres.The show will have eight episodes, with a new one dropping each day until its finale on Dec. 29.If you're not subscribed to the streaming service, you can sign up for Disney Plus on its own or tap into one of the many Disney Bundles. James Martin/CNET Disney Plus starts at $10 per month for standalone subscriptions, but you may choose to get the Disney Bundle, which packages the service with Hulu and/or ESPN Plus. Bundles can save money -- whether you want to stream with or without ads. Viewers also have the option to try the new bundle package offered from Max, Hulu and Disney Plus, which starts at $17 per month. Read our Disney Plus review. See at Disney Plus