The world has been reduced to rubble by a massive earthquake. While no one knows for sure how far the ruins stretch, or what the cause of the earthquake may be, in the heart of Seoul there is only one apartment building left standing. It is called Hwang Gung Apartments. As time passes, outsiders start coming in to Hwang Gung Apartments trying to escape the extreme cold. Before long, the apartment residents are unable to cope with the increasing numbers. Feeling a threat to their very survival, the residents enact a special measure.

A success-hungry lawyer finds himself unable to turn his back on a suspicious case involving a child who claims she murdered her brother.

A lawyer is given the mission of revitalising a bankrupt zoo that has no animals. When he and a group of zookeepers come up with the idea to dress like animals and his fake polar bear goes viral, the zoo becomes a hit, before his law firm’s real intentions are revealed.

Seok-young, a girl who loves to swim, comes to the countryside and bumps into mysterious Woo-ju. They get closer after Woo-ju saves her from drowning. However, they part ways when Woo-ju leaves the countryside to pursue his dream. Woo-ju is now a promising swimmer, and Seok-yeong cheers him on from afar. Will they ever be reunited as they swim between feelings of inferiority and puppy love?