After graduating from high school student Rick (Casper Van Dien), at the instigation of his girlfriend Carmen (Denise Richards), violates his father's will and joins the Mechanized Infantry Academy. Carmen also joins the Naval Academy. Shortly after they participated in training, the earth was attacked by insects from another planet. Rico's relatives were all brutally killed, and Carmen transmitted the images she took to Rico. Angry and angry Rick led his men into the battle against alien insects. However, the military underestimated the strength of these insects. In an encounter, 100,000 troops were brutally killed, leaving only Rico, Carmen and other people narrowly escaped. Rico witnessed the horrific killing scenes with his own eyes and accidentally learned the secret of how these insects became so smart and powerful. Rico realized that more advanced weapons must be made to deal with these insects, and the human counterattack began!