The Blackcollar

Blackcollars were a human task force designed to defeat alien Ryqril invaders. The guerilla warriors were improved by drugs to enhance lifespan, speed, reflexes, and memory. Allen Caine has never met this weapon, stronger than Nova-class battle cruisers, but 30 years later goes to find their remnants, Damon Thane, and 5 starships from the planet Plinry.