Actor Robert Downey Jr. poses before the German premiere of "The First Avenger: Civil War" (original title: Captain America: Civil War) in Berlin, Germany, April 21, 2016. Reuters/Fabrizio Bensch

A new trailer for “Avengers: Infinity War” has been released online. The video shows the Guardians playing an integral part in the story. It also includes a scene from a flashback involving the main villain Thanos (Josh Brolin).

In the first trailer of the upcoming film, the Guardians appear towards the end, hinting at the possibility of Peter Quill (Chris Pratt) and his friends arriving after Thanos invades, which could be a good setup for the final film. However, the new trailer (see below) suggests that they will appear in major portions of the film.

Thor (Chris Hemsworth) appears to be the first to bump into the Guardians. The trailer shows Gamora (Zoe Saldana) sharing details about Thanos with Tony Stark (Robert Downey Jr.). There is also a flashback scene that appears to show how Thanos took away Gamora when she was just a child to train her to become an ultimate weapon.

Thanos is obsessed with death, and his plan is to wipe out the life of at least half the universe. But he will face a tough fight on Earth as the heroes unite to defend their home.

From Black Panther (Chadwick Boseman) to Tony Stark and his new Hulk-buster suit, the film will have a large ensemble of characters, which will make it difficult for the director to juggle the screen times of each superhero. Captain America (Chris Evans) will be also back, and he appears to be strong enough to take on Thanos.

The heroes will not only be fighting Thanos. There’s also a huge invading army that they must to face.

Also, Dr Strange (Benedict Cumberbatch) has a new nemesis in the form of side villain Ebony Maw, an alien who has the power to persuade enemies to do anything he commands.

Credit: Marvel Entertainment