'Robotech' is a sweeping science fiction anime epic spanning three generations of humans defending their homeworld against alien domination. The story of Robotech is told through the eyes of characters caught up in a series of wars that erupts when a mysterious spacecraft crash-lands on Earth at the turn of the millenium. Rebuilt by the nations of the world, the secrets of the alien science found aboard the vessel were unlocked, leading to the development of "Robotechnology" and the creation of a vast arsenal of robotic "mecha" to defend the Earth against the alien threats that would eventually strike in three separate invasions to lay claim to the mysterious power source known as "protoculture." -- from robotech.com