The presence of new media also influence and change the concept of journalism so that it brings forth the backpack journalist. This study aims to find out the construction of social reality conducted by the backpack journalist on the struggle of The Samin in maintaining the local wisdom of their ancestral heritage in the video "Samin v.s Semen 2015" in social media YouTube. Construction of local wisdom referred to in this study is the process of social dialectics experienced by The Samin on the process of externalization, objectivation, and internalization in maintaining the noble values that they believe. The paradigm of this research is interpretive paradigm using Roland Barthes semiotic analysis method. This study analyzed verbal and visual signs in the video that lasted 39 minutes and 25 seconds and divided into several scenes, such as the scene of Community of Samin, the arrival of artist Melanie Subandono and cement factory in Tuban. The results showed that in the process of externalization, people of Samin are those who adapt to the environment but still uphold their ancestral teachings. They see that the relationship with others and nature as a form of their relationship with the Creator, so they try not to conflict with the local people. Meanwhile, in the process of objectivation, they seek to interact or adapt to their socio-cultural world. This is what makes the Samin cannot refuse when required to have the Identity Card. While in the process of internalization, people of Samin associate with local people where they are in a similar environment. The Samin have identified themselves with the social institutions or social organizations to which they belong. In this internalization process, the Samin took a role in rejecting the construction of cement plants with other citizens as an effort to maintain their ancestral heritage.