In 1912, the RMS Poseidon, the world's most luxurious passenger ship, set out across the Atlantic for New York City. It would never see it's destination. To Lisa, a homeless artist, winning two tickets on the luxury liner was the best thing that ever happen to her. Her life, as well as everyone else on the ship, would be changed forever. However, she never anticipated in meeting a person who shifted her entire world on its axis and brought a new meaning to her life. Jennie Kim was a young woman living in a rich society and engaged to a millionaire; however, she was living in a fantasy that she wanted to escape. Jennie knew things were going to change once she boarded the luxury liner, but she never knew that it was going to change to the extent that she becomes enamoured with a third-class artist who is the only person who can see her true thoughts and feelings. Lisa and Jennie find themselves becoming thrusted into each other's worlds and despite their differences in social class, they find themselves falling in love but to what cost?