Writer and director James Cameron has finally revealed the plot details of Avatar 2. The second part of the epic science fiction franchise will be a family saga based on the planet Pandora.

"The storyline in the sequels really follows Jake and Neytiri and their children. It's more of a family saga about the struggle with the humans," he told Variety.

The first part of the movie released in 2009 ended with Jake permanently transformed into his Na'vi avatar and Neytiri killing Colonel Miles Quaritch to save Jake's life.The rest of the earthlings, who attacked the local Na'vi tribe along with the colonel, were sent back to earth.

According to Cameron, the plot of the second movie will follow Jake and Neytiri's life as a couple. He also hinted that apart from the family drama, the movie will revolve around the ethereal magic of the lush habitable moon of a gas giant.

"There's a tendency sometimes to go a little beyond the spiritual mysticism in the movie into actual magic. They can't have any actual magic, because it's not a universe that allows for true magic. But it definitely exists in a kind of a mystical, spiritual realm. The films do, and the show definitely does as well. It was that kind of creative conversation," the 62-year-old Canadian filmmaker added.

The premiere date of the movie has been postponed numerous times as the cast and crew are working simultaneously for four sequels of Avatar. The second part of the science fiction movie is tentatively scheduled to release in theatres during Christmas 2018. Part two will be followed by Avatar 3 in 2020, Avatar 4 in 2022, and Avatar 5 in 2023.

"We haven't moved that target yet, but we will if we need to. The important thing for me is not when the first one comes out but the cadence of the release pattern. I want them to be released as close together as possible. If it's an annual appointment to show up at Christmas, I want to make sure that we're able to fulfill on that promise," Cameron said explaining the premiere delay.