Station Arcture was the first casualty of the Kafer War. In Mission Arcturus, Fireteam One, Platoon One of the American Marines is sent in to take it back! PCs are members of Platoon One, or Kafer-experienced Advisors to the Marines.

Mission Arcturus includes information on the French Bassompiere Suffren-Class Cruiser that gets the PCs to the Arcturus system, the Marines and their equipment (including two pages on the French BH-21 Combat Walkers, and their pilots), four sample Advisors, the Arcturus system, Station Arcture, part of a Xenopsychologist's report on Kafers, Armor/Damage Rules Revisions, and information on the Kafers.