Out of kindness, Li Ming offers three coworkers a ride to work along his route, and they initially volunteer to share the fuel costs. But as time goes by, they take his generosity for granted and repeatedly make unreasonable demands. When a new coworker, Wang Jie, joins them, he starts scheming and stirring up trouble, while the others twist the facts. Li Ming stands his ground and refuses to continue giving them rides. Later, when an unexpected crisis strikes a project, he relies on his professional expertise to overcome the emergency and protect the project's results. Through this experience, he learns that kindness must have boundaries and that one's own rights deserve respect.