Harvey Dent has brain damage and is half good half evil depending on the flip of his coin. Bruce Wayne turns down Edward Nigma's machine that manipulates brainwaves. Nigma then kills his supervisor, making it seem suicide, layed riddles, and became the Riddler. He teams up with Two-Face and creates a machine that fed all peoples thoughts into his brain. He discovered that Bruce Wayne is Batman and leaves a final riddle at his mansion. Two-Face shoots Batman and Riddler destroys the batcave. Bruce and Alfred put all the riddles together. Each riddle has a number and if you transfer the numbers into letters it read Mr. E. The could be Mystery of Enigma. Mr. E. Nigma. Robin came and together they went to the Statue of Liberty to confront them.