Lord Shen is hyper intelligent, supremely lethal, and burns with ambition. It's a combustible combination. His past has forged in him the notion that he's been wronged and that the world owes him something. He intends to do everything in his power to take it, which includes inventing a weapon unlike anything the world has ever seen. He's intent on wiping out kung fu and taking over China. That puts him on a collision course with Po and The Five.