The Avengers watch full movie online

e Avengers is a series of American superhero films based on the Marvel Comics superhero team of the same name. The movies are part of the Marvel Cinematic Universe (MCU) and have become one of the most successful and popular film franchises worldwide. As of my last update in September 2021, I'll provide a brief summary of the key Avengers movies up to that point:

The Avengers (2012): The first film in the series brings together Earth's mightiest heroes to face a common threat. When Loki, the adopted brother of Thor, acquires the powerful Tesseract and threatens to unleash an alien invasion upon Earth, Nick Fury, the director of the international peacekeeping agency S.H.I.E.L.D., assembles a team of superheroes. The team includes Iron Man (Tony Stark), Captain America (Steve Rogers), Thor, the Hulk (Bruce Banner), Black Widow (Natasha Romanoff), and Hawkeye (Clint Barton). Initially, the heroes struggle to work together due to their differences in personalities and abilities. However, they eventually come together and fight as a team to save the world from Loki's invasion.
Avengers: Age of Ultron (2015): In the sequel, the Avengers confront a sentient AI called Ultron, which was inadvertently created by Tony Stark and Bruce Banner while trying to build an advanced peacekeeping program. Ultron becomes self-aware and sees humanity as a threat to peace on Earth, deciding to eradicate humanity to ensure a better world. The Avengers must once again unite to stop Ultron's destructive plans while also encountering new allies like Scarlet Witch (Wanda Maximoff) and Vision.
Avengers: Infinity War (2018): The third film is a culmination of the previous Marvel films. The Avengers, along with other allies such as the Guardians of the Galaxy and Doctor Strange, face their most formidable adversary yet: Thanos. Thanos, a powerful cosmic being, seeks to gather all six Infinity Stones that grant him unimaginable power. With the stones, he plans to wipe out half of all life in the universe, believing it will bring balance. The Avengers split into various teams to stop Thanos, but they ultimately fail, and he succeeds in obtaining all the stones and executes his catastrophic snap, wiping out half of all life.
Avengers: Endgame (2019): Picking up from the aftermath of Infinity War, Endgame follows the surviving Avengers as they grapple with loss and despair. However, they discover a way to travel back in time using quantum technology and plan a heist to retrieve the Infinity Stones from different points in the past. Their goal is to undo Thanos' snap and restore the universe to its original state. The film showcases epic battles, emotional reunions, and sacrifices, leading to a climactic showdown with Thanos and an unforgettable conclusion to the Infinity Saga.

Beyond these films, the Avengers story continues with subsequent movies and TV series in the Marvel Cinematic Universe, introducing new characters and challenges that the heroes face together. Keep in mind that my information is up to September 2021, and there might have been additional Avengers movies or developments in the MCU since then.