Seo Dong-joo (Park Hyung-sik), the head of the secretariat of Daesan Group, appears to be a loyal subordinate, but in fact he is ambitious and has always been eager to climb to the top of the group. By chance, he accidentally got a sum of 2 trillion won in black gold. He wanted to use the money to change his fate, but instead he was in danger of his life. In order to fight against the mastermind behind the scenes, he embarked on a journey of revenge for the gold.