Li Chunmei, a female coach bus driver with twenty years of zero-accident experience, encounters a sudden emergency on the road on the eve of the Mid-Autumn Festival. Risking everything to protect the lives of all passengers on board, she is nevertheless subjected to baseless cyberbullying driven by social prejudice. With the help of journalist Lin Yue, she collects evidence to prove her innocence, bravely fights against injustice, vindicates herself, secures safety guarantees for the passenger transport industry, and safeguards the safe return home of every traveler.