The original full-length feature film. A race of giant male bionoids from outer space attacks the Earth, and the humans send their super space fortress to repel the invaders. The space war turns into a three-way conflict when the invaders' arch enemy arrives - a race of giant bionoids. Both bionoid armies assault Macross with huge robot-like spaceships. The Earthlings appear doomed...until they discover their human behaviour has strange effects on the aliens.