 Robotech is three Japanese Animation titles (Macross, Army of the Southern Cross, and Mospeda) that were put together and dubbed into English. The plot follow three generations of humans. A "war movie", Robotech starts with an alien starship landing on Earth. Humans rebuild the ship and learn parts of its technology. When a race of giants comes looking for the ship, the humans defeat them by using human emotions and music to off balance them. The 2nd Generation is about their children, while the parents have gone to find the homeworld of the giant soldiers  makers, the Robotech Masters. The Masters have come to Earth, however, and the Southern Cross must fight them off. The 3rd Generation is about the space-going humans coming back home to find out Earth has been taken over by yet another alien species. Throughout the series a mysterious power source, Protoculture, and its technological use, called Robotechnology, is paramount. A "serious" cartoon, Robotech deals with the causes and consequences of war on people.