Starship Troopers: Invasion (スターシップ・トゥルーパーズ インベイジョン) is a 2012 adult animated military science fiction horror film directed by Shinji Aramaki. It is the fourth installment of the Starship Troopers franchise. The film was released in Japan on July 21, 2012, and in North America on August 28, 2012, as a direct-to-video title.
The film was followed by Starship Troopers: Traitor of Mars (2017).
Plot
On an asteroid, the Terran Federation's Fort Casey is crawling with bugs. The starship Alesia begins to deploy its Mobile Infantry troopers, by dropship, to seize and control the hangar and rescue any survivors. Lt. Daugherty's Alpha Team lands and immediately engages bugs, fighting through to rendezvous with the surviving Fort Casey troopers. After setting explosives charges, the troopers head to the starship John A. Warden for evacuation, only to see it leave dock without them—Minister Carl Jenkins has commandeered the Warden from Captain Carmen Ibanez, sending her to Alesia. Before leaving, Jenkins orders that Major Henry "Hero" Varro, the commander of Fort Casey's K-12 troopers, be escorted to Alesia as a prisoner. Alesia docks with Fort Casey for emergency evacuation of the surviving troopers, and the Fort Casey asteroid is successfully destroyed.
While en route to Earth, Alesia is contacted by General Johnny Rico from High Command at L-6 Base. When he orders Alesia to search for the Warden, which has broken all contact, the Fort Casey troopers agree to do so on condition that Varro lead them during the mission.