A state-owned enterprise is a city surrounded by walls: those outside are desperate to get in, while those inside are doing everything they can to break free. Over fifteen years, Tang Ping transforms from a naive workplace newcomer into a mid-level manager. Gradually, he finds common ground between career planning and personal growth. Along the way, a string of events unfolds, surprising even Tang Ping himself: family, love, home, and career… Faced with one new turning point after another, what will Tang Ping choose? Where will life take him…