Marvel Studios officially announces the production of The Avengers, marking a major step in the Marvel Cinematic Universe's development.
The main cast for The Avengers is assembled, including Robert Downey Jr. as Iron Man, Chris Evans as Captain America, Scarlett Johansson as Black Widow, and others.
Principal photography for The Avengers begins, involving locations in Albuquerque, New Mexico, and Cleveland, Ohio.
Principal photography for The Avengers is completed, moving the production into post-production.
Marvel Studios releases the first official trailer for The Avengers, generating significant buzz and anticipation.
The Avengers premieres in Los Angeles, marking a major event in the film industry and Marvel Cinematic Universe.
The Avengers is released in theaters worldwide, becoming a critical and commercial success.
Loki arrives on Earth via a portal opened by the Tesseract, beginning his plan to conquer Earth with the help of the Chitauri army.
The Avengers capture Loki but he escapes during transport using his scepter to control Hawkeye, initiating conflict among the team.
Tony Stark and Bruce Banner argue about the best way to handle Loki and the energy signatures detected, highlighting tensions within the team.
Loki opens a portal in New York City to summon the Chitauri army, leading to a massive battle to defend the city and stop the invasion.
Bruce Banner transforms into Hulk and rampages through the battlefield, turning the tide in favor of the Avengers during the invasion.
Tony Stark pilots a missile into the Chitauri mothership to destroy it from within, preventing further reinforcements and saving New York.
The Avengers defeat Loki and close the portal. Loki is taken into custody by S.H.I.E.L.D. for the crimes committed.
After the battle, the Avengers go their separate ways but remain on alert for future threats.
