In 1944, Soviet forces occupied Lithuania for a second time in less than five years. The Invisible Front tells the story of Lithuanian resistance and love between Luksa and Nijole .In 1944, Soviet forces occupied Lithuania for a second time in less than five years. The Invisible Front tells the story of Lithuanian resistance and love between Luksa and Nijole .In 1944, Soviet forces occupied Lithuania for a second time in less than five years. The Invisible Front tells the story of Lithuanian resistance and love between Luksa and Nijole .