Returning to her home planet, an infamous bounty hunter forms an unexpected alliance with a team of unlikely heroes. Together, they battle monsters and dangerous bandits to protect a young girl who holds the key to unimaginable power.
Peter Quill, still reeling from the loss of Gamora, must rally his team around him to defend the universe along with protecting one of their own. A mission that, if not completed successfully, could quite possibly lead to the end of the Guardians as we know them.
Just when his time under house arrest is about to end, Scott Lang puts again his freedom at risk to help Hope van Dyne and Dr. Hank Pym dive into the quantum realm and try to accomplish, against time and any chance of success, a very dangerous rescue mission.