30 years ago, a case of theft of a golden pig was not solved. Fat Crab (played by Sammo Hung), who was originally the best detective among the Chinese detectives, was dismissed for being too fat and suffering from mild brain dementia. He was taken in by Doctor Without Borders Ruan Xiangchang (Dean) (played by Lin Minsu), who returned from the battlefield, together with other elderly people (Ng Yaohan, Liang Xiaolong, Teddy Robin, and Tian Niu) who were picked up and placed in the ancestral Anqi Nursing Home. They were carefully taken care of by the former nursing assistant of the dean, Qingqing (played by Ivana Wong), and enjoyed their old age. The dean's elementary school classmate, the founder of the Rain Cloud Group, Hong Yuyun (played by Lam Suet), is now a successful businessman. Because he was bullied by the dean when he was a child, he vowed to seize the dean's nursing home and make the dean lose everything. He sent small staff members Ajun (played by Cheung Jicong) and Ale (played by Lam Shing-bin) to infiltrate and cause trouble. Each of the elderly has his own unique skills and is no ordinary person. They vow to protect the nursing home as their home to repay the director for saving their lives. The main characters in "As Treasures as Pearls" are always the family members around them, and family members cannot be left out...