Bao's mother, recently arrived from Hong Kong, moves in with the Tans. "Grandma" solely speaks Cantonese but is trying to learn English. Everyone in the household needs to make adjustments to get used to Grandma, but Ricky seems to have the hardest time. Grandma, despite her glaucoma, spends much of her time as the new pair of eyes at the store, and cannot help but comment directly, albeit in Cantonese, about all the store's customers, including Elaine Wainwright, who she accuses of being a shoplifter. There indeed has been a string of thefts at the store, so Yuri installs an antiquated and only half functioning security camera. Grandma ends up being more perceptive than anyone gives her credit and better eyes for the store than the camera. Meanwhile, Ricky, the aspiring karaoke star, is asked to sit with Grandma during a time he wants to sing in a karaoke competition. He decides to ditch Grandma for the competition - which he ends up winning - but Grandma, alone, gets into a near ...