Spoiler alert! This story contains major details from the June 24 premiere of “Years and Years.”

With all that happens in HBO’s “Years and Years,” one could be forgiven for thinking the family drama (Mondays, 9 EDT/PDT) is actually a sci-fi adventure-thriller.

In the June 24 premiere episode, audiences meet the multi-generational Lyons family of Manchester, England, who face a whiplash-inducing world of change as events jump from the present-day to five, 10 and 15 years into the future. There's even a nuclear event, as there was in HBO's much-talked-about "Chernobyl."

Creator Russell T. Davies ("Queer As Folk," "Doctor Who"), who didn't watch such predictive dramas as "Black Mirror" and "Network" to avoid their influence while writing, says the events are fictional but not sci-fi fanciful.

Citing President Donald Trump's rise and the U.K.'s Brexit vote, Davies – who doesn't support either one – says the world is going through "very strange times, dark times, but fascinating times. Life does feel more politicized and angry and busy. And I thought the world is politically and personally changing … in a way I have to write about.”

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Here are the fictional – but possible – events from the first episode of the six-episode miniseries, which finished its run in the U.K. last week:

Trump wins a second term

Politically, President Trump is reelected in the U.S. as a fictional celebrity businesswoman Vivienne Rook (Emma Thompson) catches the British public’s fancy.

The blunt, divisive Rook is "a bit of Trump (and pro-Brexit politicians) Nigel Farage and Boris Johnson, (the latter of whom) is literally about to become our next prime minister," the Wales-born Davies says. “But the truth of Vivienne Rook is she’s all of us in our worst online moment, all those angry voices on Twitter, all those furious posts I keep reading from my friends on Facebook.”

Russia gains power in Ukraine

Ukraine, now essentially controlled by Russiain "Years," has made homosexuality a crime and immigrants are arriving en masse to England.

"I wrote that last summer – and then at Christmas, gunboats between Russia and Ukraine started tussling with each other. There were signs of warfare," Davies says.

In the show Ukraine stands in for other places, such as Chechnya, where gay people are persecuted, he adds. "Overnight, these things are changing, with the wrong vote or the wrong president. It's volatility and acceleration."

Mind-machine merger becomes a movement

In the Lyons family, teen Bethany (Lydia West) tells her parents that she’s trans – but not transgender. Instead, she declares herself transhuman, seeking to have her brain uploaded to the digital cloud, so as to trade her mortal body for eternal life.

"That’s a real thing," Davies says, referencing Mark O'Connell's prize-winning book, "To Be a Machine." "The language is brand new and it's possibly the most advanced thing in the show in terms of futurism."

In a more comic man-machine merger, another Lyons family member discovers her date has been having sex with a robot, killing the romantic moment.

Nuclear war becomes a reality

To top things off, there’s a U.S. nuclear strike on a man-made island China has created as a military base.

The island piece of the plotline is based on reality, says Davies. "China has been building artificial islands in the South China Sea that America is very angry about. That is all frighteningly real, even though it kind of looks like I made it up," he says.

Of all the potential future events depicted in the episode, nuclear devastation scares Davies the most. He notes how one of the characters, housing officer Daniel Lyons (Russell Tovey), says he believed the nuclear threat was a thing of the past.

“But if you look at North Korea, if you look at what’s happening in Iran now, with gunboats and American drones being shot down, you think: Where is this going to stop? Suddenly, a terror (attack) is back on board,” Davies says.

Those events shake the Lyons family, matriarch Muriel, her four adult children – Stephen, Edith, Daniel and Rosie – and their relatives and friends, leading to tension and division.

For all the "Years" gloom, however, Davies says the institution of the family holds up.

“It gets very dark, as every family saga must," he says. "It’s a roller-coaster ride but I can promise people joy in the ending. The family survives this. And it must, I think.”