From the Back of the Book:
When a horrifying swarm of insectlike aliens called Cephids is discovered speeding through space, the Space Hawks are called to action. Destroying everything in their path, the Cepids are heading to the planet Baakra--and then Earth!
It's a challenge only the space Hawks can meet. Together you fly into the jaws of death, outwit the mysterious Cephids, and save the galaxy from destruction.