The eternals were sent to Earth to watch over its population and combat the deviants, a race of mutated beasts that prey on humans. For thousands of years the eternals have protected mankind from the deviants, but something has changed in the deviants. The eternals will need to reunite to face this new threat.
JJ does his best to explain the deeper parts of the lore. Mattson wants to know why none of the cosmic beings tried to stop Thanos. Javier provides some generosity and praises the action. Ian couldn't quite believe some aspects of this story.