Plot: The tire blowout happens when YAT-SING is giving TAI-CHI a ride to the office, so TAI-CHI helps YAT-SING change the flat tire, during which he even talks about his own background. With NGAI-SHUN describing NGAI-YAN as Empress WU ZETIEN, NGAI-CHUNG also complains that they would have to seek NGAI-YAN's signature for approval with regard to the company issues no matter how trifling it is