When Master Chao arrives to oversee the Tournament of the Sun Pennant, Shifu is convinced that Master Chao and Po want to replace him at the helm. Meanwhile, Pei Mei, Shifu's old enemy arrives in the valley of peace and threatens to destroy Shifu.When Master Chao arrives to oversee the Tournament of the Sun Pennant, Shifu is convinced that Master Chao and Po want to replace him at the helm. Meanwhile, Pei Mei, Shifu's old enemy arrives in the valley of peace and threatens to destroy Shifu.