Star Fighters: Alien Attack & Deadly Mission (Unabridged‪)‬

In Alien Attack, Peri is a first-year student at the Intergalactic Force Academy and has been selected for a rare unsupervised exercise in space, paired with Diesel, a half-Martian from the Academy.

Whilst on exercise they witness Earth coming under bombardment from Xion spaceships....

In Deadly Mission, Peri and Diesel agree to rescue a Meigworian Prince, held captive by the Xions.

But the Meigwor insist that Otto, a gigantic Meigworian bounty hunter, must accompany them....