Inspired by the real life rescue of over 300 British soldiers in 1942, Dongji Rescue is a rousing, action-packed story of heroism on the high seas. When the Japanese warship Lisbon Maru is torpedoed off the coast of Dongji Island, the lives of over 300 British POWs on board are at risk of being claimed by the sea. Their only hope is a small group of defiant Chinese fisherman who will do anything to rescue and protect them from their captors.

Hu Bayi and Fatty Wang had planned to go abroad with Shirley Yang. However, they were entrusted by Professor Chen to travel to the Coral Spiral with Mr. Ming to search for the Qin Emperor's Bone Mirror. They befriended Ruan Hei, Gu Cai, and Duo Ling on Coral Temple Island. Together, they set sail. One night, they were sucked into the underwater cave of Guixu.