Undersea Super Train: Marine Express
海底超特急 マリン・エクスプレス
Undersea Super Train: Marine Express FMovies. The plot of Marine Express can be described in two parts. The first part focuses on the people boarding the train and the problems they encounter on it. The second part takes place after the train has stopped at its half-way point, an island that used to be home to an ancient civilization millennia ago and has its fair share of secrets.