The audiences who watched the preview of the last episode of "The Heirs" would think that the drama's storyline is unpredictable even up until the end.

After the end of the nineteenth episode of SBS Wednesday Thursday drama "The Heirs," which was aired in the evening of December 11, 2013, a preview of the final twentieth episode came up, attracting the attention of the many "Heirs" fans.

When the father Kim Nam Yoon, played by Jung Dong Hwan, is struggling with his health condition, Kim Won, played by Choi Jin Hyuk, and Kim Tan, played by Lee Min Ho, both of who were struggling for the power position in the family, collaborated. Kim Tan met up with each and every international shareholders of his father's company.

Choi Young Do, played by Kim Woo Bin, visited the place where his mother, played by Choi Ji Na, was working. The mother had left the house he was raised a long time ago when he was little. When Choi Young Do saw his mother in a long time, he cried.

Jung Hyung Joo, played by Im Joo Eun, told Kim Won, "Lets break up. That is my wish," and returned to Kim Won the gift he gave her earlier. Kim Won, as his parents had wished, started seeing the daughter of another conglomerate family again.