A Thai historical film based on the Haw Wars during the reign of King Rama V in 1885, when a group of Chinese Haw rebels rose against Siam and besieged a Thai military camp. The authorities launched a secret mission, sending Lieutenant Tem, a talented young officer, together with Sergeant Thon, a veteran soldier, and twenty-four patriotic troops to deliver medicine and artillery shells. Their goal was not only to supply the besieged forces but also to plant the national flag at the frontier as a symbol of sovereignty, even though they knew the mission might cost them their lives.