Data expert Ming Ji goes incognito to work on grassroots analysis, is forced out by a supervisor stealing credit and a vice president tampering with working hours, and even bears the blame for a leak, suffering suspension. She digs out the bottom-layer original records of the punch clock, retrieves the deleted logs, locks down the tampered account and the instructing directives, and the chain of evidence closes loop by loop. Client director Chu Heng has sought her for three years, protecting her reinstatement with a contract. At the press conference scene, Ming Ji publicly displays all the evidence, sends three leaders down the table together, and takes back her authorship and life.