The parts that are hard to follow from the film alone, explained with a story summary, a character map and key terms.
Released
2018
Runtime
149 min
Set in
2018
WORLD BOX OFFICE#8 all-time worldwide$2,052,415,039#3 among Marvel filmsAs of 2026-11-01 · figures being verified
Good to know before watchingNo spoilers
The culmination of everything before
Heroes from Iron Man to Black Panther appear together. Seeing at least The Avengers, Civil War and Guardians of the Galaxy helps a lot.
Part one of two
The story continues in Endgame. The ending is a shock.
Remember the six stones
Space, Mind, Reality, Power, Time and Soul. Checking the key terms for where each stone is makes the story easier to follow.
There's a scene after the credits
An important scene that leads to the next film.
Character mapSpoilers
Who's who in Avengers: Infinity War (2018), with Thanos at the center. Heroes fighting in space are above, Thor's group on the left, and heroes fighting on Earth below.
Because of copyright, we can't use stills, posters or any other images of the characters as they appear in the film. All face photos are freely licensed photos of the actors themselves (non-human characters are original illustrations made for this site; people without a photo are shown with initials).
Drag to move, pinch (or scroll on a computer) to zoom. Tap a person to read about them.
Face photos are freely licensed photos of the actors from Wikimedia Commons, cropped to a square and resized. Non-human characters are original illustrations made for this site, and people without a photo are shown with a placeholder (initials).
Six stones born with the universe. Together, they can do anything with a snap of the fingers.
The Infinity Gauntlet
The golden glove made to hold all six stones.
The Black Order
Thanos's lieutenants, called his children, including Ebony Maw and Proxima Midnight.
Where the stones are
Space is in the Tesseract with Loki, Mind in Vision's forehead, Reality with the Collector, Power on Xandar, Time in Strange's amulet, and Soul is lost.
Stormbreaker
Thor's new axe-like weapon, which can also summon the Bifrost.
Wakanda
The vibranium nation, site of the final great battle.
Confusing parts, explainedSpoilers
Contains spoilers about the ending.
Why does Thanos want to wipe out half of all life?
He truly believes the universe's resources are limited, and that halving life lets the rest thrive.
Why does Strange give up the stone?
He looked at over 14 million possible futures and found just one where they win. Giving up the stone was part of it.
What does the Soul Stone require?
Sacrificing the one you love most. Thanos sacrifices Gamora.
Are the people who vanished dead?
They turned to dust. What happens next is told in Endgame.
What's the post-credits scene?
Just before he vanishes, Fury sends a message on a pager. The symbol on the screen is Captain Marvel's.
Easy-to-miss details
"Peter tingle"
Peter's hair stands on end as his spider sense warns him of danger.
Tony vs. Strange
Both proud, they trade jabs throughout, even about each other's facial hair.
Groot grows up
Baby Groot from Vol. 2 is now a teenager glued to his video game.
The ending and post-creditsSpoilers
After the end credits
Nick Fury sends a distress signal to Captain Marvel just before he vanishes.
