
The exploits of the Mobile Infantry squad, "Razak's Roughnecks," during the SICON–Bugs War between a newly united humanity and an extraterrestrial race, known as the "Bugs," also sometimes referred to as Arachnids.
Rookie troopers Rico, Flores and Jenkins journey to Pluto as part of Alpha Team "Razak's Roughnecks" on what is supposed to be a simple mop-up operation, but find a major threat to the research stations from plasma-shooting alien Bugs.
When the Roughnecks pick up a distress call from pilots Ibanez and Barcalow, who are under attack at a research outpost, Rico risks the safety of his own squad to save Carmen.
The squad is assigned to assist intelligence officer Earle Walker in capturing a live Plasma Bug and bringing it back through enemy territory.
As the war moves to the planet Tophet, the Roughnecks go after Razak and Higgins, who are trapped behind enemy lines and about to be blown up by their own air strike.
Rico has to train Higgins the reporter to defend himself in combat, as the Roughnecks try to defend themselves from new flying Bugs that seem impervious to laser fire.
On a mission to capture an important mountain pass, Rico has trouble trusting the squad's newest member, a cyborg.
Higgins summarizes the current state of the war on Pluto and Tophet in clips from previous episodes.
When the Roughnecks go beneath the surface of Pluto to locate the Bug army's incubation center, Flores suffers from disabling claustrophobia.
The battle against the Bugs moves to the watery planet Hydora, where Rico and the Roughnecks again come to Carmen's rescue when she is stranded while evacuating wounded.
The "Transport" Bug that was found bringing reinforcements and eggs to Pluto is followed back to the watery planet Hydora, where it releases barb-shooting flying bugs of a previously unknown type. Is this the bug home world?
Created by: Duane Capizzi, Richard Raynis, Jeff Kline
Available on: Syfy, Syndication