Three ordinary people who are in trouble in their respective fields - photographer Zi Lu, lawyer Breeze and human resources manager Shi Sui - after taking over a late-night hot pot restaurant on the verge of bankruptcy, they accidentally discovered an old-fashioned radio that can connect to parallel time and space. They are forced into a series of rescue missions across time and space. In the process of saving others, they not only heal their own inner wounds, but also transform from "waste" to folk heroes.