Tianhuo Island is as beautiful as a paradise. It almost makes people forget that it is located in the "Ring of Fire" the world-famous Pacific Rim volcanic belt. The volcano erupts, and the fates of the people on the island are entangled.

A man lives in a lovely apartment with his wife and 2 children. He is obsessed with cleanliness, has strange dreams and struggles with a mystery in his past. He goes to a bad part of town hunting for a long lost brother, leaving his wife and children in their car. As he tries to get cooperation from neighbors, the wife finds her children are missing. A stranger wearing a dark motorcycle helmet appears, frightening her. As the story unfolds this stranger follows them becoming more and more threatening.

A country schoolteacher reaching retirement comes to Wuhan in search of his only son. His dying wife has requested to see her boy one last time. He is met by his daughter Yanhong who works as an escort in a karaoke bar. Yanhong introduces him to a policeman who sympathizes with his plight and agrees to help him to find his son.

In the Korean War China and North Korea fought together against the United States. Frontline needs in tens of thousands tons of military supplies every day. Railways has become the most important means of transport. The U.S. Army, unwilling to accept defeat on the battlefield, mobilized a large number of aircraft to bomb indiscriminately along railways, and carried out the so-called "war of attrition". Following the order of Commander Peng Dehuai, Liang Junying, the commander of the Sino-DPRK Joint Railway Transport Command, led the volunteer warriors on the transport front to carry forward the fearless revolutionary spirit, building bridges, repairing railways, and transporting supplies in the "317" section, which was dotted with bombs and mines. This is the real "indestructible and bombable steel transport line".