The swimming team is deflated after its captain, Tin Heng, passed away tragically. However, a reserve of the team, Gei Yuen, works his way up in hope to represent his captain in competitions and to boost the team's morale. His mind may be focused on Tin Heng whom he idolises, but he cast his watchful and silent infatuated glances on Tsz Suen, Tin Heng's girlfriend and member of the girls' swimming team, who remains aloof and even apparently nonchalant about her boyfriend's death. Gei Yuen originally thinks Tsz Suen is dismissing her emotions to mask her sadness. However, he finds out that she is harbouring a secret...

Her name’s Pong, Mrs. Pong. At first glance, she’s a meek, middle-aged woman, pleasantly plump and perfectly harmless. Yet as circumstances demand it, she’s not your ordinary mother, nor a long-suffering widow for that matter. Her missions? To pull her son out of peril while standing up to bullies and saving homes from being uprooted and demolished in the name of urban renewal. Mrs. Pong effortlessly transforms from an armchair survivalist to a fearless heroine hell-bent on her mission, trading punches and kicks for frying pans and woks, awakening a rebellious spirit that wars against exploitation and oppression in a system tilted towards the rich and powerful.