The reconnaissance brigade where Wang Changlin was and the Kuomintang uprising unit where Savinbo was were integrated together to form the South China Sea Armed Work Team, codenamed Red Shark. The main task was to cooperate with the People's Liberation Army to capture the islands along the coast of South China. Savinbo's sister Savinlan came to the Armed Work Team as a family member. Because she was not adapted to the military lifestyle, she seemed out of place. The members of the Armed Work Team lacked marine knowledge. Savinlan, who was born in a naval family, played to his strengths and became a cultural instructor. After experiencing the painful lesson of the defeat on Dengmen Island, the Armed Work Team summed up its experience, faced up to its shortcomings, and gradually acquired the ability to fight on the island. It has successively completed tasks such as collecting ships for the large troops to land on the island, instigating the enemy troops defending the island, and destroying the oil depot on the island. After the People's Liberation Army successfully liberated Hainan Island and the Wanshan Islands, the number of the South China Sea Armed Work Team was revoked, and Wang Changlin, Savinbo and others were incorporated into the navy.