It starts off with Star-Lord getting taken from Earth then jumps 20 years to him getting a orb. Then dropping it off and getting involved in a fight between Groot, Rocket Raccoon and Gamora. Theyall sent to prison meet Drax and escape. Drop orb off fight Ronan he gets orb. He going to use it on Xander the Guardians stop him. This is part of the Marvel Cinematic Universe (MHM15).