Fund manager Jang Tae Ho is a cocky but skilled stock manipulator, who is used to getting things done his way. But when he fails at a scheme worth 35 billion won, his life is in danger as a notorious moneylender, Mr. Jung, hunts him down for losing his 7 billion won. Broke and in hiding, Tae Ho joins the hungry and homeless on the streets around Seoul Station, dreaming of returning to his normal life, until he unexpectedly discovers its 10 billion Korean Won underground economy. The pecking order among the homeless at Seoul Station is stacked like a pyramid. All the money collected from begging to selling personal identities and organs flows up the 7 levels of ringleaders to “Number One”, Kwak Heung Sam, who reigns at the top. Tae-ho decides to take down each level’s ringleader and conquer the hierarchy at Seoul Station with wit, fists, and guts. Will he be able to recover the 10 billion won and return to normal life again? (Source: JTBC)