13 details you should remember before you watch 'Jurassic World: Dominion'

At the end of "Fallen Kingdom," Maisie Lockwood (Isabella Sermon) let all of the dinosaurs escape from the island of Isla Nublar, where Jurassic Park and Jurassic World were located, so they wouldn't burn to death.

In "Fallen Kingdom," we learn that the geneticists weren't only experimenting with dinosaurs.

Maisie is introduced in the 2018 sequel as the granddaughter of Benjamin Lockwood. It turns out she's actually a clone of his daughter, Charlotte.

Lockwood was a business partner of John Hammond, the creator of Jurassic Park from the 1993 film. Hammond ended his working relationship with Lockwood over a disagreement on human cloning.

The mathematician specializes in studying unpredictable behavior. He thought that Jurassic Park was always a mistake and would lead to something terrible.

In "Dominion," he continues to study Chaos Theory.

The pair worked together on at dig sites with Grant's background as a paleontologist and Sattler's background in paleobotany. In the first film, the two were invited to a sneak peek at Jurassic Park by the park's founder, John Hammond, before it opened to the public.

By "Jurassic Park III," Ellie was married with two kids and lived in Washington, D.C., while Grant remained married to his work.

In the first film, BD Wong's character, geneticist Dr. Henry Wu, says all of the dinosaurs in Jurassic Park are female as a failsafe.

"They can't breed in the wild. Population control is one of our security precautions. There's no unauthorized breeding in Jurassic Park," Wu told Alan Grant (Sam Neill), Ellie Sattler (Laura Dern), and Ian Malcolm (Jeff Goldblum).

Malcolm was concerned that, despite being female, life would find a way and that if the animals wanted to breed that they would breed.

In "Jurassic Park," Dodgson appeared at the film's start to offer Dennis Nedry (Wayne Knight) millions if he successfully stole embryos of the park's 15 dinosaur species.

The character returns in "Jurassic World," but he's played by a different actor (Campbell Scott).

Dennis Nedry was trying to sneak embryos out of the park for Dodgson, making the Biosyn CEO responsible for all of the chaos that ensued in the first film.

He was a member of the U.S. Navy before working at "Jurassic World" training dinosaurs.

Unlike most people, dinosaurs tend to be trusting of Owen (Chris Pratt), sensing that he doesn't have alterior motives to imprison or harm them.

Barry Sembène (Omar Sy), who also worked as a Velocirator trainer in "Jurassic World" with Owen and can be seen above, will briefly return in "Dominion."

Blue is Owen's female velociraptor pal who he trained since she was young. She's incredibly loyal to Owen, saving him countless times throughout the "Jurassic World" franchise.

At the end of "Fallen Kingdom," Owen asked Blue to come with him, but she decided to run off into the wild on her own instead.

The former park operations manager of Jurassic World founded the Dinosaur Protection Group to provide a sanctuary to dinosaurs.

The two were in an on-again, off-again relationship throughout the "Jurassic World" franchise.

In "Fallen Kingdom," Franklin tried to help Claire save dinosaurs off of Isla Nublar, the island where Jurassic Park, and then Jurassic World, was located.

The geneticist was knocked out near the end of "Fallen Kingdom" before he was dragged off and his lab exploded. We never saw him make it off Isla Nublar, but this man always survives and always manages to have samples of dino DNA on hand to continue creating new dinosaurs.

At the end of "Fallen Kingdom," a faceless person is seen opening a suitcase full of dinosaur DNA vials aboard a plane. Because of his role in "Dominion," it's probably safe to say Wu wasn't far from those samples.