The Fate of Earth (Space Runners, Bk. 4)

Benny Love and the Moon Platoon have befriended a small crew of peaceful Alpha Maraudi aliens, and they’ve decided to work together to end the war between humans and the aliens without violence.

But while they’re forming a plan, an Alpha Maraudi ship is preparing to strike a deadly blow on Earth. If the Moon Platoon can’t stop the attack, life as they knew it on Earth will be destroyed, and Benny and his friends will be stranded in space—forever.