After being unemployed for six months, 35-year-old Wang Yu sets aside the prestige of his former mid-level position and returns to the internet industry as an intern project assistant. Facing a huge gap in seniority and sudden project crises, he draws on years of accumulated work experience, maintains a strong drive to learn, resolves problems step by step, and gradually earns the team's trust. Enduring one test after another, he seizes the chance to enter an internal promotion competition and ultimately stages a comeback, becoming a project lead once again.