When Quill attempts to sell the orb on the Nova Empire capital world, Xandar, Gamora ambushes him and steals it. A fight ensues, drawing in a pair of bounty hunters: the genetically engineered raccoon Rocket, and the tree-like humanoid Groot. The Nova Corps arrives and arrests all four, imprisoning them in the Kyln. While there, a powerful inmate, Drax, attempts to kill Gamora due to her association with Ronan, who killed his family. Quill dissuades him by saying that Gamora can bring Ronan to him, at which point Gamora reveals that she has betrayed Ronan, unwilling to let him use the orb's power to destroy entire planets such as Xandar. Learning that Gamora has a buyer for the orb, she, Quill, Rocket, Groot, and Drax work together to escape from the Kyln.
Elsewhere, Ronan meets with Gamora's adoptive father, Thanos, to discuss her betrayal and the loss of the orb. Accompanied by Drax, Quill's group escapes the Kyln in his ship – the Milano – and flee to Knowhere, a remote criminal outpost in space built in the giant severed-head of a Celestial. A drunken Drax summons Ronan while the rest of the group meet Gamora's contact, the collector Taneleer Tivan. Tivan opens the orb, revealing an Infinity Stone, an item of immeasurable power that destroys all but the most powerful beings who wield it. Suddenly, Tivan's tormented assistant grabs the Stone, triggering an explosion that engulfs Tivan's archive.
The above taken from Wikipedia.
Honestly, the only part I remembered the most was when Groot saved the world! LOL! A mild action movie with slapstick funnies in between to keep you entertained. Nothing as serious or dark about this movie... great to watch with the family. We are Groot!
Directed by James Gunn
Starring Chris Pratt, Zoe Saldana, Dave Bautista, Vin Diesel, Bradley Cooper
Genre: A 2014 American superhero film based on the Marvel Comics superhero team