Complex sentence: Homer wakes up in an alternate reality where everyone and everything is made of Lego bricks, but while everyone is enjoying the new world, Homer has visions of his old life and must find a way to return to the world of 2D animation.
Split into simpler sentences: Homer wakes up in an alternate reality where everyone and everything is made of Lego bricks. While everyone is enjoying the new world, Homer has visions of his old life and must find a way to return to the world of 2D animation.