In 1970, a string band called "The Possible" was really popular and made a fever among young people. One day, the band received a microphone as the present from a mysterious fan. Miraculously, the microphone was a time-machine that accidentally took them to the future, in 2007, where the modern music rules and they're just an out-of-date item.

Earth, a mischievous 8th-year university student, is about to reach its final chapter. In what should be his last semester before graduation, instead of focusing on his studies, he pours all his energy into winning the heart of Sai Mai, a junior student.

The film will reflect on the time they shed their sweat and tears and the origin of their songs, which earns them the status of legendary band in Thailand till today.