Season One is the first season of Voltron: Legendary Defender and contains 11 episodes total. The first episode, The Rise of Voltron, consists of three parts merged into an hour long premiere. The season's corresponding Comic is Volume 1, which takes place between the episodes Rebirth and Crystal Venom. It is the only season with a released soundtrack.
Season one was originally released on June 10, 2016 as a Netflix-exclusive series after being announced at Wonder Con 2016. It was globally released in Australia, Austria, Benelux Union, Latin America, Canada, France, Germany, Ireland, New Zealand, Scandinavia, Switzerland, United Kingdom, and United States. The series aired on Netflix Korea on October 10th, 2016.
The season released for digital download along with Season Two beginning August 15, 2017, and included an interview with WEP staff Ted and Bop Koplar, as well as interviews with Legendary Defender cast.
The first episode, The Rise of Voltron, was split into three separate episodes for the release:
A New Alliance
From Days of Long Ago
Defenders of the Universe
It is slated to release in DVD format on June 12, 2018 in the same box set as Season Two with no other additional content. The DVD release totals 26 episodes, yet again splitting The Rise of Voltron into three separate episodes.