Old Shanghai is in turmoil. Su Nuan, who has fallen from a wealthy family, and Li Chenyuan, a gangster who has risen from the grassroots, got married because of pawnbroking. They experienced love and hate entanglement in the whirlpool of shopping malls and rivers and lakes, and protected each other in life and death. They rekindled their love with the birth of a child and joined hands to protect the family; the flames of the Anti-Japanese War swept across. Later, the family of three moved to Chongqing to save the country through industry, and returned to Shanghai to rebuild the family business after the war. The eldest son, Li Niannuan, inherited his parents' will and sublimated personal protection into responsibility for the country and the country, allowing this warm and affectionate love that transcended years and smoke to be passed down in Shanghai forever.