ハーモニーゴールド USA
is a three-part original video animation (OVA) based on the popular 1970s anime "Science Ninja Team Gatchaman". It was released in Japan and the United States during the mid-1990s. This version of "Gatchaman" is set in the year 2066 where the evil leader of the nation of Hontwall is threatening to take over the planet. Scientists from the International Science Organization are disappearing and only five teenage heroes, the Science Ninja team, can stop the disaster. The OVAs were licensed by Urban Vision through Harmony Gold USA and were released on VHS and DVD. At Anime Boston 2013, Sentai Filmworks had announced that they have rescued the OVA series along with the original 1970s series for a DVD re-release in October. The series was made available for streaming through Crunchyroll.