The heroine Wang Li took a high-speed train with her son and daughter to Sanya to celebrate the New Year. When they got off the train, they were inexplicably transported to 1964. With two children, Wang Li had neither a letter of introduction nor a household registration, so he had no choice but to pretend to be an overseas Chinese escorting "secret information" back to China. From then on, he lived a life of fear.
Intention: Never give up and keep improving.