A Journey Into What They've Become

As summer seemed a little too boring, a young prodigy named James creates a substance that when injected into someone's body could change its physical appearance.

While James commercialized his work, people opposed to its use. Manifesting around the globe. Simultaneously, observatories around the globe detected a meteorite large enough to wipe out Earth's life. Its destination? Earth. Nations around the world attempted to save themselves by launching their missiles at where the meteoroid was located, but to no avail. They all missed it. People lost their hope and went home to stay with their relatives for one last moment.

James still had a card up his sleeve. Thanks to a time machine created by his parents, he traveled with his friends into the future.
They planned to go 10 years into the future to see if there was anything left of their planet, but when they ceased the time travel, they discover that they actually went 1000 years into the future.

There, they discover how humanity, or what's left of it, has evolved.