Umizaru 3: The Last Message
Plot. Senzaki and Izawa, who both have a son, are about to experience their first wedding anniversary. Upon preparations, Senzakihen receives a call regarding a natural gas exploration platform "Nigaya" which has unexpectedly gone haywire. In response to the coming strong typhoon, the original task was to escort the exploration platform designer Mr. Sakuragi into the platform and shut down the exploration platform in order to survive the typhoon. However, the damage to the exploration platform gradually becomes severe In order to prevent the bottom fire from spreading to the uppermost natural gas cylinder and  causing a devastating explosion, Sakuragi activates the layered valve for isolation, leaving him stranded on the platform with two unevacuated personnel, as well as Senzaki and a rookie diver Hattori. After a series of accidents, Senzaki and Hattori sink the exploration platform in order to prevent a cylinder explosion. Senzaki's leg becomes injured during the mission and cannot escape as the exploration platform keeps sinking. After the typhoon, all the marine security officers dispatch to the rescue. As Izawa watches everything at home with their son, she realizes what Senzaki had arranged for the wedding anniversary, as she  listens to the last message in the sea monkey doll... Reception. It was number-one at the Japanese box office for six straight weeks.