The Coast Guard guys have no idea what happened to the ship. They believe they'll have answers after the Bingo-maru's search and rescue. All's well that ends well.
Or not. The Bingo-maru suffers the same fate as the Eiko-maru
Fun fact: Curious why there's so much "maru" floating around this nautical speak? It's a tradition in Japan to attach the suffix maru to the names of merchant ships. In contrast, U.S. ships use prefixes such as MS (motor ship), RV (research vessel), and so on. Why the Japanese adopted this trend is a subject of some debate. A possible answer is that the suffix comes from the word maro, a defunct male pronoun that signaled respect and affection (TEXT).