The Escape from the Sovereign Fleet was an attempt by the Guardians of the Galaxy to evade Sovereign Omnicrafts.
Ayesha, the High Priestess of the Sovereign people and their leader, hired the Guardians of the Galaxy in order to kill an inter-dimensional monster called the Abilisk, which was eating Anulax Batteries.
After the battling and defeating the monster, the Guardians meant to give the batteries for the Sovereign, however, Rocket Raccoon decided to take some of the batteries for himself.
After Ayesha discovered that Rocket Raccoon had stolen the Anulax Batteries from the Sovereign, she sent a fleet of drones after the Guardians of the Galaxy. The Guardians, realising they were outnumbered, decided to head for a hyperspace warp, which involved flying through a quantum asteroid field, where the asteroids quantum tunnel around and flicker in and out of existence as if they randomly teleported, making it very dangerous to fly through the area.