Auto mechanic Jiang Cheng painstakingly runs his repair shop. Seeing the booming business, landlord Huang Dahai triples the rent and, along with apprentice Huang Tao, plots to take over the ready-made storefront. Refusing to compromise, Jiang Cheng dismantles and removes all equipment to open a new shop elsewhere. Huang Tao takes over the old shop and tries to attract customers with low prices, but repeatedly crashes due to a lack of technical skills. A technical showdown immediately reveals who is superior, and greedy schemes ultimately come to nothing. Relying on his solid craftsmanship, Jiang Cheng safeguards his career, proving that doing business relies on ingenuity rather than just a storefront.