By scanning the locations at the bottom of the ocean where sunken ships, treasures and even cities lie, the show tries to answer what they look like, how they got there and if they hide any secrets.
“Shall we go on a trip?” Jin-wook and So-ri couple have been dating for 6 years. So-ri randomly suggests that they should go on a trip along with her best friend Mi-ra and her boyfriend. It is because she promised with Mi-ra before that the four should go on a trip together once Mi-ra has a boyfriend. Jin-wook does not feel comfortable with her plan because he has not been interested in So-ri’s friend at all and has not had a meal even once with the friend together so far. However, he unwillingly decides to go on the trip. As Jin-wook heard that Mi-ra and her boyfriend would prepare all of camping equipment and fishing gadgets, he really does not prepare anything. He only packs the reading material for his thesis in his backpack so that he can work on the thesis that he has been preparing for the last few years continuously. While So-ri was not happy with Jin-wook who has been complaining about every single thing, she is surprised to see how sweet Mi-ra’s boyfriend is. Also, So-ri becomes tired of Jin-wook’s immature behaviors. Mi-ra’s boyfriend Gyeong-hoon has prepared everything for the camping trip including the tent rental, fishing, and cooking. He is just a perfect guy with such a considerate manner towards his girlfriend Mi-ra. Jin-wook, unhappy with the situation, makes a sarcastic comment about Gyeong-hoon for working as a DJ at a club. From Jin-wook’s point of view, Gyeong-hoon is nothing compared to his career as a teaching assistant, who is preparing for his master’s degree at the age of 35. Because So-ri feels sorry for not preparing anything for the trip, she helps Gyeong-hoon cooking the meal diligently, while Mi-ra, who is hypocritical often, stays inside their tent along with Jin-wook and shares her secret personal stories with him.
富家女阿珍（李丽珍 饰）狂野不羁，自幼受父母溺爱的她深信自己的处世哲学，只想要追寻自由简单生活与浪漫炽热的爱情。暑假期间，父母安排其前往英国参加夏令营， 她却想趁此机会计划一个属于自己的假期，暗地里将机票送给好友，自己却前往男友处准备与其过甜蜜的二人世界。岂料发现男友正与另一女子鬼混，她一气之下开始自己的孤独旅途，一路上遇到了各色人士，有好色的流氓、不羁的浪子、有趣的夫妻......到底珍能否找到心中所爱呢？
“我想起来了……”沉睡的记忆与真相即将觉醒。故事以长野县为舞台，高人气角色“长野三人组”大和敢助、诸伏高明、上原由衣将登场亮相。当毛利小五郎警视厅时期同事“鳄鱼”遭遇意外，与致使大和敢助“独眼”的神秘雪崩案交织，无法兑现的承诺和独眼中的残像就此重叠。雪花飞舞，真相与爱意终将明晰！这一次，毛利小五郎将不再沉睡，与柯南、大和敢助等人携手探案，亲手揭开掩埋于雪山之下的秘密与真相……
