Baek Sung Il is a veteran tax collector on the lower side of lower-middle class. In one week, him and his co-worker brother get hit with the same scam, by the same scammer. In the series opener, we meet our scammer.

Baek Sung Il's detective friend has some ideas on how to nab the scammer. As they go after the scammer, they realize he might not be their only culprit.

Sung Il reluctantly agrees to work with Jung Do, but doesn't realize that also means recruiting a whole team of seedy delinquents.

Sung Hee promises to retrieve the money from Chief Director Ahn. Jung Do comes up with a plan to snare Ma Jin Seok.

Ma Jin Seok goes to check on his potential investment. Detective Sa Jae Sung is hot on Jung Do's heels.