the third department of planning was once the most mysterious and glorious department within gaofa electronics company, but in the past three years, its status has plummeted due to repeated unreliable plans. ddd。 however, the people in the third project performed the life of "ordinary strugglers" in their own ways. whether it is li tianran, the "black hole" in the workplace, fan sisi, a girl who pursues peace and indifference, or wu yimei, a cold-faced and warm-hearted person, or bai mashuai, who chooses to fight to not be a playboy, they have their own dreams, their own persistence, and their deep feelings for the three parts of the project. they make progress with their colleagues and grow with the company. although they faced the competition of the deputy director's intentional tricks and planning a movie, they successfully resolved the crisis again and again, brought the three movies back to the peak, and also allowed themselves to grow up in the workplace life with tears in their laughter, and gained precious love and friendship.