SOS! Tokyo Metro Explorers: The Next
Original Title：新SOS大東京探検隊
Languages:
- English: SOS! Tokyo Metro Explorers: The Next
- Chinese: 新SOS大东京探险队
- Japanese: 新SOS大東京探検隊
"SOS! Tokyo Metro Explorers: The Next," also known as "Shin SOS Dai Tokyo Tankentai," is a 2007 anime movie. The story follows Ryuhei, an energetic elementary school student who, while packing for a move, discovers his father's old notebook detailing a treasure hunt in Tokyo's underground passages. Along with his younger brother and three online friends, Ryuhei embarks on a quest to find this treasure. Instead of treasure, they find an underground community of eccentric individuals, including an elderly soldier still believing he's on a WWII mission. This anime is acclaimed for its unique adventure plot and emphasis on friendship, showcasing the children's growth as they explore the unknown and discover things more valuable than mere riches.