In 1961, supplies were scarce, Jiang Xiaobei's father was seriously injured and hospitalized, and huge medical bills crushed the whole family. In a desperate situation, he accidentally obtained a mysterious blue stone, opening the door of two worlds connecting 1961 and 2026. He shuttled between the two worlds, selling old things to raise money, bringing back food and medicine to save his family, met Ye Qingge in the pigeon market, and the two accompanied each other through difficulties. He must strictly guard the secret of shuttle and guard against other people's scheming. The time flow rate is different, opportunities and crises coexist, he wants to help people around him, once the secret is exposed, disaster is imminent, and he can only be careful step by step.