Avengers: Doomsday’ Trailer Rocks Comic-Con: Doctor Doom Raises Army of Sentinels to Take Down Avengers, Fantastic Four and X-Men

Marvel Studios' top boss, Kevin Feige, surprised fans at San Diego Comic Con by showing exclusive footage of "Avengers: Doomsday" to selected attendees in Hall H.The trailer begins with Victor Von Doom (played by Robert Downey Jr.) sitting on a throne, while Vanessa Kirby's Sue Storm, also known as the Invisible Woman, talks about how broken he is.She says, "Victor was always the smartest guy in the room.He used to be different," in a somber tone.It's evident that Sue and the rest of the Fantastic Four — especially Pedro Pascal's Reed Richards — know Doom well and share a complicated history.She adds, "Everything he loved was taken from him."

The trailer includes quick scenes of the large cast, including Thor (Chris Hemsworth), Captain America (Chris Evans), Black Panther (Letitia Wright), Shang-Chi (Simu Liu), Loki (Tom Hiddleston), Cyclops (James Marsden), Magneto (Ian McKellen), Gambit (Channing Tatum), and others.

There's a shot of a destroyed New York City covered in rubble.Reed Richards asks if Victor is behind the destruction.

Doom says, "All of you have lived stolen lives." Thor challenges him, but Doom easily catches his hammer and throws it away.

He then uses his magic to knock Thor down and lifts an army of Sentinel robots — the famous androids from the X-Men movies — from the ground.

Marvel fans can watch "Avengers: Doomsday" on Dec.

18.It's expected to be a big team-up involving the Avengers, the Fantastic Four, the Thunderbolts, and many more Marvel stars.

The countdown to "Doomsday" started last December, with four teaser trailers to build excitement.

These included Chris Evans returning as Captain America with a child, Thor and his daughter Love, the Fantastic Four meeting Black Panther and the Wakandans, and the official MCU debut of Fox's previous X-Men team.

The main cast of "Doomsday" includes Robert Downey Jr.

as Doctor Doom, along with "Avengers" stars like Chris Evans, Chris Hemsworth, Paul Rudd, Sebastian Stan, Anthony Mackie, and Simu Liu.The Fantastic Four and Thunderbolts teams — made up of Pedro Pascal, Vanessa Kirby, Joseph Quinn, Ebon Moss-Bachrach, Florence Pugh, David Harbour, Wyatt Russell, Hannah John-Kamen, and Lewis Pullman — are also joining the original cast.

Members of Fox's X-Men team are also coming into the MCU for "Doomsday." Returning stars include Patrick Stewart, Ian McKellen, James Marsden, Kelsey Grammer, Alan Cumming, Rebecca Romijn, and Channing Tatum.