A small town Flint Lockwood (Bill Hader) citizen, Swallow Falls is considered a strange kid who is crazy about the world of experimentation. He always dreamed that his discovery could be useful for many people. In his school class, Flint often shows his discoveries despite the failure.
As he grew up, Flint remained ambitious to experiment. His father who opened a Sardine shop in Swallow Falls always told him to stop experimenting and help him at the shop.
But Flint continued to experiment because he was confident, optimistic that one day everyone would admire his work.
One time, Flint succeeded in creating a machine that can turn water into whatever food we want. Due to an incident, his discovery engine flew into the sky and miraculously caused food rain.