Browse all 5 episodes in this season, including available images, air dates, runtimes, ratings and episode summaries from TMDB.
Episode 1
"The blue sea" is an action drama that tells the story of a mysterious young man who lost his memory. Jo Eun Hee is a female soldier in the navy who works with Sung Ki Soo to carry out special missions under UDU (Underwater Demolitions Unit) Sung Ki Soo is a navy lieutenant who is also a professor at the non-commissioned officer department who is the first to see through the identity of the young man who lost is memory.
Episode 2
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Episode 3
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Episode 4
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Episode 5
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