Gao Da, Wu Liwei and Jin Shi, retired Chinese citizens over the age of 60, traveled together in a Southeast Asian country. They accidentally learned that Hua Chuchen, the daughter of Hua Rong, their close friend, was illegally detained by the local underworld and demanded a high ransom. It turned out that Hua Chuchen and her bestie were deceived into an underground casino on a holiday trip and accidentally drank a drink containing hallucinogens, which put herself in danger. Gao Da, Wu Liwei and Jin Shi interrupted their travel and went to the local police station with Hua Rong to report the case. However, the local police station and the local underworld were in cahoots and colluded with each other. The four Gao Da, who were extremely disappointed, had no choice but to form an elderly death squad and rush to the border mountainous area to risk their lives to rescue. After careful deployment, the four successfully rescued Hua Chuchen under heavy siege. Unexpectedly, when they were riding a bus through the mountains, they were hijacked by unknown armed forces, and the lives of the people on the bus were in danger. The four veterans acted separately. While Gao Da, Wu Liwei and Jin Shi fought a desperate battle with the bandits, Hua Rong and her daughter who escaped asked the Chinese Embassy for help. With the cooperation of inside and outside, the four finally rescued all the hostages successfully.