"Yeah. He did. But now there's a complication - uh, I'll start with the plan and then I'll add the complication, how's that. There are some heroes we didn't know about; we go and we round them up. Successfully contacting them is going to be complicated, but technically complicated, in a way that apparently I and some Wakandan woman I've never heard of can get through if we try hard and believe in ourselves. The mold for the Infinity Gauntlet apparently still exists; while we're inventing something that can call the backup someone needs to make us an Infinity Gauntlet of our own.
And then, twenty-six days from now, there's a nuclear war on a planet called Lemistra, because of the instability caused by all this genocide going around lately - there are gonna be a lot of those, we're waiting for Lemistra because that'll be enough time to have rounded up our new friends and not enough time for him to stop resting on his laurels and repair his gauntlet. Lemistra goes up in flames, billions of people die, they give themselves a nuclear winter and the survivors hang out slowly starving.
Nebula goes to her daddy, asks if he'll consider undoing that since, you know, it's terrible for the balance. Thanos should not know that this is happening left and right, he's gotta think it's a weird one-off in an otherwise successful campaign to bring about peace and happiness everywhere. Apparently he will show. We ambush him. One of the heroes we didn't know about, called Carol Danvers, has an affinity for the Power Stone. There's apparently a way for her to peel it off Thanos if we can overwhelm him in the fight. It's not gonna go the same as last time because we picked the location, we don't need the planet to survive the mess intact, and we have a month to assemble enough guns.
We assemble our own gauntlet, find someone who can wield it to undo everything. This will probably be deadly, but you know, hell of a way to go."