Harry Potter is a seemingly ordinary boy, living with his hostile relatives, the Dursleys in Surrey. On his eleventh birthday, Harry learns from a mysterious stranger, Rubeus Hagrid, that he is actually a wizard, famous in the Wizarding World for surviving an attack by the evil Lord Voldemort when Harry was only a baby. Voldemort killed Harry's parents, but his attack on Harry rebounded, leaving only a lightning-bolt scar on Harry's forehead and rendering Voldemort powerless. Hagrid reveals to Harry that he has been invited to attend Hogwarts School of Witchcraft and Wizardry. After buying his school supplies from the hidden London street, Diagon Alley, Harry boards the train to Hogwarts via the concealed Platform 9¾ in King's Cross Station.
To control the oceans, Lord Cutler Beckett executes anyone associated with piracy and uses Davy Jones to destroy pirate ships. Condemned prisoners sing “Hoist the Colours” to compel the nine Pirate Lords to convene at Shipwreck Cove to hold the Brethren Court. However, Captain Jack Sparrow, one of the Lords, never named a successor. Captain Barbossa, along with Will Turner, Elizabeth Swann, Tia Dalma, and the crew of the Black Pearl, plot to rescue Jack from Davy Jones’ Locker. Travelling to Singapore, the crew meet Sao Feng who owns navigational charts to the Locker. Beckett’s soldiers invade, but the crew escape, Feng and Turner making a deal to give Jack to Feng so he in turn can use the Pearl to rescue his father Bootstrap Bill from the Flying Dutchman. The crew successfully rescue Jack, but find themselves trapped in the Locker, encountering dead souls, including Elizabeth’s murdered father Governor Swann. They learn the Dutchman must have a captain, and their heart must be cut out to captain the vessel.
The Minister of Magic, Rufus Scrimgeour, addresses the wizarding media, stating that the Ministry would remain strong even as Lord Voldemort gains strength. Harry, Ron and Hermione prepare for a journey to find and destroy Voldemort's Horcruxes, with Harry watching Dursleys depart and Hermione wiping her parent's memories of her.
Harry Potter is forced to defend himself against charges of using magic while underage, and in the presence of his Muggle cousin Dudley, after the two are attacked by Dementors. The Order of the Phoenix, a secret organisation founded by Albus Dumbledore, inform the now pending expulsion Harry that the Ministry of Magic is oblivious to Lord Voldemort's return; under the Ministry's influence, The Daily Prophet has launched a smear campaign towards Harry and Dumbledore following Harry's encounter with Voldemort at the end of the previous year. This encounter had a huge psychological effect on Harry – he has nightmares not only about what happened in the graveyard but also about the Department of Mysteries at the Ministry of Magic. While at the Order's headquarters, Harry's godfather, Sirius Black, mentions that Voldemort is after an object which he did not have last time.
Lord Voldemort is tightening his grip on both the wizarding and Muggle worlds and has chosen Draco Malfoy to carry out a secret mission. Severus Snape makes an Unbreakable Vow with Draco's mother, Narcissa, to protect Draco and fulfill the assignment if he fails.
Harry Potter dreams of Frank Bryce, who is killed after overhearing Lord Voldemort discussing plans with Peter "Wormtail" Pettigrew and Barty Crouch Jr. At the Quidditch World Cup, Death Eaters terrorise the spectators, and Crouch Jr. summons the Dark Mark, otherwise known as the curse "Morsmordre".
Peter Parker plans to propose to Mary Jane Watson, who has just made her Broadway musical debut. A meteorite crashes near the two in Central Park, and an extraterrestrial symbiote attaches itself to Peter's moped. While fleeing police, escaped prisoner Flint Marko falls into a particle accelerator that fuses his DNA with surrounding sand, allowing him to shapeshift at will as the Sandman. Peter's best friend, Harry Osborn, who blames him for his father's death, attacks Peter using weapons based on his father's Green Goblin technology. Harry injures his head and suffers partial amnesia, forgetting that Peter is Spider-Man and his desire for revenge. During a festival honouring Spider-Man, Marko robs an armored car. NYPD Captain George Stacy tells Peter and Aunt May that Marko was Uncle Ben's killer, and Dennis Carradine was only an accomplice. While a vengeful Peter sleeps, the symbiote bonds with him. Peter wakes up hanging from a skyscraper. His costume becomes black and his powers increase, but the symbiote brings out Peter's dark side. Wearing the new suit, Spider-Man locates Marko and battles him in a subway tunnel, reducing him to mud using water.
À la suite de sa participation à l'affrontement entre Iron Man et Captain America, Peter Parker, un jeune lycéen fréquentant le lycée de Midtown, continue à se servir de ses pouvoirs sous le masque de Spider-Man pour lutter contre la criminalité qui ronge la ville de New York, tout en essayant de trouver un équilibre entre sa vie de lycéen, son amour secret pour Liz, son ami Ned Leeds, et sa carrière de super-héros masqué. Mais avec la venue d'un nouveau super-vilain nommé le Vautour équipé d'un exosquelette créé à partir de technologie Chitauri (récupérée après la bataille de New York), Peter devra faire ses preuves en affrontant ce dernier pour prouver à Tony Stark qu'il peut être un atout pour l'équipe des Avengers.
Harry Potter spends the summer at the Dursleys' house without receiving letters from his Hogwarts friends. He is sent to his room by The Dursleys to avoid embarassing them in front of Uncle Vernon's friends, who are coming over as guests.
Gotham City-based vigilante Batman travels to Metropolis to preemptively combat Superman, fearing what would happen if the latter is kept unchecked, while another threat endangers humankind.
High-school senior Peter Parker visits a genetics laboratory with his friend Harry Osborn and love interest, Mary Jane Watson for a school field trip. There, Peter is bitten on the hand by a genetically engineered "super spider". Shortly after arriving home to his Aunt May and Uncle Ben, he goes unconscious. Meanwhile, Harry's father, scientist Norman Osborn, owner of Oscorp, is attempting to preserve his company's critically important military contract. He experiments on himself with a new but unstable performance-enhancing chemical vapor that increases his speed, strength, and stamina. However, it also drives him insane and he kills his assistant, Mendel Stromm. The next morning, Peter finds that his previously impaired vision has improved and his body has metamorphosized into a more muscular physique. At school, he finds that his body can produce webs and his quickened reflexes let him avoid injury during a confrontation with bully Flash Thompson. Peter discovers he has developed superhuman speed, strength, the ability to stick to surfaces, and a heightened ability to sense danger.
On July 2, a 500 km wide alien mothership enters Earth's orbit and deploys several dozen saucer-shaped "destroyer" spacecraft, each 15 miles (24 km) wide. As they take position over some of Earth's major cities, David Levinson (Jeff Goldblum), an MIT graduate working for a cable company in New York City, discovers hidden transmissions in Earth's satellites which he realizes is a timer counting down to a coordinated attack by the aliens. With the support of his estranged wife Constance Spano (Margaret Colin), the White House Communications Director, he and his father Julius (Judd Hirsch) gain entrance into the Oval Office to notify President Thomas J. Whitmore (Bill Pullman) about the attack. Whitmore orders large-scale evacuations of the targeted cities, but the aliens attack with advanced directed-energy weapons before these can be carried out. Whitmore, portions of his staff, and the Levinsons narrowly escape aboard Air Force One as Washington, D.C. is destroyed.
1926. Norbert Dragonneau rentre à peine d'un périple à travers le monde où il a répertorié un bestiaire extraordinaire de créatures fantastiques. Il pense faire une courte halte à New York mais une série d'événements et de rencontres inattendues risquent de prolonger son séjour. C'est désormais le monde de la magie qui est menacé.
Sans que ses amis et compagnons d'aventures de l'épisode 2, Bethany, Fridge et Martha, ne soient au courant, Spencer a conservé les morceaux du jeu vidéo Jumanji dans le sous-sol de la maison de sa mère. De retour pour les vacances, alors qu'il mène une vie d'étudiant difficile à New-York et qu'il est contraint de partager sa chambre avec son grand-père convalescent, il répare le système et est happé par le jeu. Le lendemain, ses amis, avec qui il avait rendez-vous pour un brunch, passent chez lui prendre de ses nouvelles, ne l'y trouvent pas, mais constatent que le jeu en est en cours dans la cave de Spencer : tous décident de rentrer dans Jumanji pour le sauver. Le grand-père de Spencer, Eddie, et son ami Milo Walker entendent le chahut et se laissent entraîner par inadvertance dans le jeu et deviennent deux des avatars de Jumanji. Les amis adolescents doivent aider Eddie et Milo à s’habituer à leurs avatars du jeu, les aider à retrouver Spencer et à s'échapper à nouveau de Jumanji (ce qui n'est pas une tâche facile étant donné qu'il s'agit du niveau supérieur).
Captain Jack Sparrow is pursued by an old enemy, Captain Salazar, who along with his crew of ghost pirates has escaped from the Devil's Triangle and is determined to kill every pirate at sea. Jack seeks the Trident of Poseidon, which grants its possessor total control over the seas to use against Salazar.