The Guardians of the Galaxy - 2014
The millennia-old war between the Kree and Xandar finally came to an end, but Kree extremist Ronan was dissatisfied. He launched a wave of terrorist attacks across Xandarian space, and ultimately acquired the Power Stone with the intention of destroying Xandar. Fortunately, Ronan was opposed by a ragtag group of "a-holes," the self-proclaimed Guardians of the Galaxy. They were able to defeat Ronan due to Peter Quill's Celestial heritage, as he was able to handle the Power Stone and survive.
The Guardians of the Galaxy became famous for their actions on Xandar, and traveled the cosmos, working as mercenaries. They wound up on the wrong side of Ayesha, High priestess of the Sovereign, but were saved by Ego himself. Having heard of a human who could wield the Power Stone, Ego correctly deduced that Quill was his son. He took Quill to his planet, and attempted to launch his plan to absorb the whole universe into his being. The Guardians used Sovereign technology to destroy Ego's Planet, and the "living light" it contained.
In the aftermath, Ayehsa created a new Sovereign, who she called "Adam."
Terrigenesis - 2014-2015
S.H.I.E.L.D.'s shadow war with Hydra continued, with both groups seeking to explore the mysteries of the Kree Obelisk. Drawn out of the shadows after decades, Calvin Zabo manipulated events to ensure his daughter Skye was exposed to Terrigen, and revealed her real name, Daisy. Daisy developed powerful abilities to manipulate the ground and generate vibrational blasts. Fearful and out of control, she was discovered by the Inhumans of Afterlife, and taken for training. The schisming inside S.H.I.E.L.D. caused some difficult interactions between S.H.I.E.L.D. and this newly-discovered Inhuman community; Jiaying took advantage of this to attempt to incite open war between humans and Inhumans. In the end, Terrigen was dumped into the ocean, absorbed into the world's water supplies and into marine life. Although most people would be unaffected by this, exposure to Terrigen would trigger Terrigenesis in anyone with Inhuman DNA.
Although these events happened on the small screen, they're a turning point for the wider MCU. Marvel Television shows could now explore super-powers themselves, and the Inhumans would become a major part of Agents of S.H.I.E.L.D..
Source: Agents of S.H.I.E.L.D. season 2
The Sokovia Incident - 2015
Tension was growing over how the world should respond to the growing importance of "enhanced" beings and superheroes. Matters were made infinitely worse when the Avengers retrieved Loki's scepter, which contained the Mind Stone. Affected by the Scarlet Witch's powers, Tony Stark created the artificial intelligence Ultron, which went rogue. Although the Avengers attempted to defeat Ultron, the AI was able to use the Scarlet Witch to trigger a battle between Iron Man and the Hulk in Johannesburg. Ultron's masterplan - an attempt to trigger an extinction-level event - brought devastation to the war-torn nation of Sokovia. It was clear to the world's governments that the Avengers could not go unchecked, and they began work on what they called the "Sokovia Accords," to police and control superhumans.
Captain America formed a new team of Avengers, including the Scarlet Witch, Falcon, and the android being called Vision. Thor, who had experienced visions of galactic destruction, left Earth in pursuit of the Infinity Stones.
Meanwhile, in the depths of space, Thanos the last survivor of Titan had committed himself to wielding the power of the Infinity Stones. With Loki's Asgard failing to safeguard the Nine Realms, Thanos was able to visit the legendary world of Nidavellir and force the Dwarves to construct the Infinity Gauntlet.
Source: Avengers: Age of Ultron, Avengers: Infinity War
Superheroes and Vigilantes - 2015
Hell's Kitchen became a center of vigilante activity when Matt Murdock returned to his old neighborhood, and took up the superhero identity of Daredevil. He swiftly found himself taking on the growing criminal empire of Wilson Fisk. Shortly after, superhumans Jessica Jones and Luke Cage were confronted by the threat of the mind-controlling Kilgrave. Jessica snapped Kilgrave's neck, becoming one of the most hotly-debated superhumans in New York. Public opinion divided over whether or not her account was accurate, and how she should be handled by the Justice System.
In July, thief Scott Lang was freed from prison. He soon wound up connected to Hank Pym, who recruited him as the new Ant-Man in order to stop the Pym Particles being abused.
- Captain Marvel (2019) release date: Mar 08, 2019
- Spider-Man: Far From Home (2019) release date: Jul 02, 2019
- The Avengers 4 / Avengers: Endgame (2019) release date: Apr 26, 2019