Rocket Raccoon (Bradley Cooper) stole the energy battery of the high priest Ayesha (Elizabeth Debicki), and a group of people including Star-Lord (Chris Pratt), Gamora (Zoe Saldana), and Drax (Dave Bautista) were attacked by the fleet sent by the latter. A mysterious figure rescued the Guardians of the Galaxy on a spaceship, and the one driving the spaceship was none other than Star-Lord's biological father Ego (Kurt Russell). Under the leadership of Ego, Star-Lord, Gamora and Drax came to the planet created by Ego, and the remaining members set about repairing the damaged spaceship. On the other side, Ayesha commissioned Yondu (Michael Rooker) to capture Star-Lord to avenge herself, and Gamora gradually discovered the huge conspiracy hidden under Ego's kind face.