The second edition of the China International Import Expo (CIIE) will get underway on Tuesday. Organizers promise a bigger, smarter and more crowded trade bonanza than last year's inaugural event. CGTN takes you inside the National Exhibition and Convention Center in Shanghai before gates open to throngs of exhibitors, buyers and curious visitors. Join Serena Dong and Nadim Diab as they explore the massive venue and see what has changed since last year.