7.5 billion years after people: The sun finally explodes. Earth is  a post-apocalyptic wasteland.

60 billion years after people: Chuck Norris hits a reset button, bringing all of humanity that was on the planet
Post-apocalyptic city

The city after the sun's death.

before back into existence.
Post-apocalpytic city (2)

The first man to walk on the earth again.

1 minute after the humans came back: Chuck Norris realizes he forgot to push the reset button that brought the sun back into existence, along with the reset button for the objects that collapsed in the past few episodes. He presses them, and the world is back the way it was before mankind vanished.