Captain America: The First Avenger (2011): Space Stone

In 1942, Steve Rogers is a small skinny dude, his close buddy is Bucky. Due to his physicality, Rogers is rejected for the World War II military but is persistent. Dr. Abraham Erskine, head of the Super Soldier program, overhears Rogers and deems him a suitable candidate because of his selfless nature. Rogers is ultimately picked for the program and becomes tall, muscular, super strong, agile .. the works and becomes Captain America. A while before this, a Nazi officer, Johann Schmidt (also a Hydra operative), had gone through an imperfect version of the Super Soldier program.

Schmidt get his hands on the Tesseract. He intends to harness its powers to build weapons and destroy all of America. Howard Stark (Tony Stark’s dad), gives Cap a Vibranium shield. Schmidt, whose plans are foiled by Cap, reveals that his face was merely a mask covering his Red Skull.

In one of the missions on a train, Bucky falls to his apparent death (no he doesn’t die, he comes back in Winter Soldier). In the climax of the film, Cap gets on board Red Skull’s plane which is armed with the Tesseract weapon. Red Skull touches the Tesseract which opens a wormhole and sucks him through (he doesn’t die, Red Skull returns in Infinity War). The Tesseract falls into the ocean, and Captain America sacrifices himself by crashing the plane in the Arctic. He doesn’t die, he gets cryogenically frozen. Howard Stark retrieves the Tesseract but is unable to find Cap. Howard eventually becomes one of the founding members of S.H.I.E.L.D. Cap remains frozen for 70 years.

Iron Man (2008)

Tony Stark eventually inherits his father’s company. Over the years, Stark Industries has been manufacturing and supplying weapons across the world. Obadiah Stane, a senior personnel in the company, has been illegally trafficking weapons. In one of Tony’s demonstrations of the Jerico missile, he’s captured by terrorists. In the process, Tony is wounded in the chest by shrapnel shards from the explosion. In the cave, where Tony is kept, is another captive, Dr. Yinsen, who implants an electromagnet into Tony’s chest to keep the shards out of his heart. The terrorists demand that Tony builds them missiles, but Tony and Yinsen build an armored suit powered by an arc reactor. Yinsen sacrifices himself and Tony blows his way out destroying the terrorist camp.

Spider-Man: Homecoming (2017)

After the Chitauri’s invasion in Avengers, a man named Toomes is hired to clear the city. But Tony’s company takes over the operation, and Toomes is left without a job. He uses the Chitauri tech to build new weapons and a suit for himself; Toomes is the Vulture. After the fight at the airport in Civil War, Peter resumes school but focuses on crime-fighting with his new Spider-Suit from Tony.

Peter is reckless and takes on the Vulture endangering himself and civilians. Tony takes away the Spider-Suit. Eventually, Spider-Man and Vulture learn of each other’s true identities. Peter dawns his plain-old Spider-Man costume and goes after Vulture who plans on stealing from a plane transporting weapons from the Avenger Tower. Spider-Man defeats Vulture and saves Toomes from the unstable Vulture-Suit. Toomes is arrested, and Peter declines the offer to become a full-time Avenger.

Captain America: Civil War (2016)

When Bucky was under the Hydra Mind Control, he was given the assignment to kill Howard Stark and his wife. Bucky kills Tony’s parents. At some point in time after the Winter Soldier movie, Cap gets to know but keeps it a secret from Tony. In the current day, the UN feels that the Avengers have become way too powerful and they need to be “governed”. That the events that involve the Avengers cause way too many casualties. Tony is ridden with guilt and agrees to sign up with this. Natasha, Vision, and Rhodes are with Tony whereas Captain America, Falcon, Hawk-Eye, and Wanda are against it.

Enter Zemo, a guy who has lost his family in the Ultron incident. He wants revenge and understands that there is no point in fighting the Avengers. Instead, he gets his hands on the information that Bucky assassinated Tony’s parents and plans to use this to turn Iron Man against Cap. Zemo tracks down the document that contains the trigger words to activate Bucky’s brainwashing. We are then introduced to T’Challa who appears with his father, T’Chaka, king of Wakanda, at the UN signing. Zemo instructs Bucky to bomb this meeting, and T’Chaka is killed. T’Challa (secretly the Black Panther) seeks revenge and joins Team Iron Man. Tony also gets Spider-Man to join him. Cap retrieves Bucky who’s temporarily free of the Mind Control. Team Captain America gets Ant-Man to join them. The two sides have a massive showdown at an airport leaving Rhodes with a crushed leg. Team Captain America are arrested except for Cap and Bucky.

Zemo makes the Avengers believe that he’s going to activate all the other Winter Soldiers (who are in cryosleep) in a secret facility. Cap and Bucky get to the facility. Iron-Man realizes that Bucky was framed and also heads to the location. But Zemo has killed off all the Winter Soldiers and plays Tony a video that shows Bucky killing his parents. Enraged, Iron Man attacks and dismembers Bucky’s arm. Cap deactivated the Iron Man suit and saves Bucky. Zemo is successful in breaking up the Avengers and plans to commit suicide but Black Panther, stops him and hands him over to the authorities.

Black Panther (2018)

In this film, we are shown that a meteorite hit a place in Africa thousands of years ago. This meteorite contained the metal Vibranium (the one Cap’s shield is made from). One warrior eats a heart-shaped herb affected by the metal and gains super-human strength. Thus is formed the kingdom of Wakanda under the leadership of this warrior. Over generations, they use the Vibranium to become highly advanced but remain hidden.

After the events of Civil War, T’Challa returns to Wakanda to become king. He faces M’Baku in ritualistic combat to the death and defeats him but doesn’t kill him. Erik initially appears to be working with Klaue. A CIA agent, Everett, gets involved and is severely wounded while trying to arrest Klaue. T’Challa decides to take Everett back to Wakanda to save his life. Erik kills Klaue, shows up in Wakanda, and announces who he is. He challenges T’Challa and defeats him, throws him over a waterfall, and becomes king. He also consumes the herb to turn super-powered. Erik picks up where his father left off and commissions jets to fly out Vibranium to dealers in America. T’Challa is saved by M’Baku as a repayment. T’Challa’s family revive him by giving him the last of the heart-shaped-herb. In a final showdown with the Black Panther, Erik is killed. Everett remote pilots a jet and takes down the planes carrying the Vibranium. After this, T’Challa announces at the UN the truth about Wakanda.