In Marvel's 2011 film, Thor, we learn about Loki. We learn that he was taken from the Frost Giants of Jotunheim as a baby by Odin, King of Asgard, and adopted as his second son. Unbeknownst to Loki, he isn't actually Asgardian. Odin falls
into the deep "Odinsleep" to recover his strength. After he finds out who he really is, he creates a plan to proving himself worthy to his adoptive father. Thor arrives and fights Loki before destroying the Bifröst Bridge, the
means of traveling between worlds, to stop Loki's plan, stranding himself in Asgard. Odin awakens and prevents the brothers from falling into the abyss created in the wake of the bridge's destruction, but Loki apparently "commits
suicide" by allowing himself to fall when Odin rejects his pleas for approval.
Marvel's The Avengers
In Marvel's 2012 film, The Avengers, Loki encounters the Other, the leader of an extraterrestrial race known as the Chitauri. In exchange for retrieving the Tesseract, a powerful energy source of unknown potential, the Other promises
Loki an army with which he can conquer Earth. After causing chaos in Midtown Manhattan, The Hulk finds Loki and beats him into submission. In the aftermath, Thor returns Loki and the Tesseract to Asgard.
Thor: The Dark World
In Marvel's 2013 film, Thor: The Dark World, Loki is imprisoned for his war crimes on Earth. In London, astrophysicist Dr. Jane Foster, Thor's girlfriend, and her intern Darcy Lewis travel to an abandoned factory where portals have appeared,
disrupting the laws of physics around them. Separating from the group, Foster is teleported to another world, where she is infected by a dangerous weapon known as the Aether. Darl Elf Malekith, awakened by the Aether's release, attacks
Asgard. In the fight, Frigga, Thor and Loki's mother, is killed protecting Foster. Thor reluctantly enlists the help of Loki and in return, Thor promises Loki vengeance on Malekith for killing their mother. Loki tricks Malekith
into drawing the Aether out of Foster, but Thor's attempt to destroy the exposed substance fails. Malekith merges with the Aether and leaves in his ship as Loki is fatally wounded. Thor, cradling Loki in his arms, promises to tell
their father of his sacrifice. Thor returns to Asgard, where he declines Odin's offer to take the throne and tells Odin of Loki's sacrifice. As he leaves, Odin's form transforms into Loki, who is alive and impersonating Odin.
THOR: ragnarok
In Marvel's 2017 film, Thor Ragnarok, Two years after the battle of Sokovia, Thor is imprisoned by the fire demon Surtur in Musepelheim, who reveals that Thor's father Odin is no longer on Asgard. Thor returns to Asgard to find his
brother Loki posing as Odin. After exposing Loki, Thor forces him to help find their father, and with directions from Stephen Strange on Earth, they locate Odin in Norway. Odin explains that he is dying and Ragnarök, the destruction of
Asgard, is imminent. He also reveals his passing will allow his firstborn child, Hela, to escape from a prison she was sealed in long ago. Odin dies as Thor and Loki watch on, and Hela appears, destroying Thor's hammer, Mjolnir. She pursues
the two as they attempt to flee through the Bifrost Bridge, forcing them out into space, but they fall out mid-travel and crash on Sakaar, a garbage planet surrounded by wormholes. A slave trader designated Scrapper 142 subdues him with
an obedience disk and sells him as a gladiator to Sakaar's ruler, the Grandmaster, with whom Loki has already ingratiated himself. Thor is forced to compete in the Grandmaster's Contest of Champions, facing his old friend Hulk. Thor attempts
to convince Hulk and 142 to help him save Asgard, but neither is willing. He soon manages to escape the palace and finds the ship that brought Hulk to Sakaar. Hulk follows Thor to the Quinjet, where a recording of Natasha Romanoff, Black Widow, makes
him transform back into Bruce Banner for the first time since Sokovia. The Grandmaster orders 142 and Loki to find Thor and Hulk, but the pair come to blows and Loki forces her to relive the deaths of her fellow Warrior Valkyrior at the
hands of Hela. Deciding to help Thor, she takes Loki captive. Unwilling to be left behind, Loki provides the group with the means to steal one of the Grandmaster's ships. Loki again attempts to betray his brother, but Thor anticipates
this and leaves him behind. Thor, Banner, and 142 escape through a wormhole to Asgard, where Hela's forces are attacking the remaining Asgardians. Loki and the other gladiators arrive to rescue the citizens. Thor, facing Hela,
loses his right eye and then has a vision of Odin that helps him realize only Ragnarök can stop her. He sends Loki to retrieve Surtur's crown and place it in the Eternal Flame. Surtur is reborn and destroys Asgard, seemingly killing Hela.
Avengers: Infinity War
In Marvel's 2018 film, Avengers: Infinity War, Loki does some really silly stuff. And things happens to him that I still haven't gotten over and it has been 8 months.
