Rintaro Okabe is an unbridled student of imagination. A self-proclaimed mad scientist, he spends his days with two of his friends inventing farfelus objects in his Laboratory of Futuristic Gadgets. When they connect a cell phone to a microwave, they discover with amazement that they have the opportunity to send messages in the past! This great power involves a colossal responsibility, but who can predict what these three otaku will do with it?