The official "Terminator: Genisys" trailer has been released, and it features a first real glimpse at what fans can expect from the upcoming film.

"If we die tonight, mankind dies with us."

That's what John Connor tells his men at the beginning of the trailer, before sending Kyle Reese back to the past to protect his mother from a Terminator that Skynet sent back in time to kill her.

John tells Reese, "In the time you're going back to, she'd be scared and weak. Take care of her for me, Kyle."

Reese goes back to what appears to be 1984 — the scene is almost exactly like what happened in the original "Terminator" movie — there he lands stark naked in an alleyway, there's the police car, there are the racks of clothes in the department store.

But wait, instead meeting a scared Sarah Connor and saving her from Arnold Schwarzenegger's T-800, Reese meets a tough young woman who saves him from what appears to be a T-1000 (the one with a body made from liquid metal ).

She tells the time-traveler, "Come with me if you want to live."

The plot gets really twisted because Sarah tells Reese that "we" — that is, she and someone else — already took care of the Terminator that was sent to kill her.

Sarah explains that the time to which John sent Reese should actually be non-existent because things have changed. The change could have happened years back because in the trailer, a girl, presumably a young Sarah Connor, is being carried by the T-800 in a rather fatherly manner (albeit with what looks like a bazooka slung over his other shoulder).

According to Entertainment Weekly, Sarah became an orphan when she was 9 because of a Terminator, but the T-800, which was programmed to protect, took care of her.

EW also quotes producer David Ellison as saying, "Since she was 9 years old, she has been told everything that was supposed to happen. But Sarah fundamentally rejects that destiny. She says, 'That's not what I want to do.' It's her decision that drives the story in a very different direction."

Apart from Arnold Schwarzenegger who returns as T-800, "Terminator: Genisys" also features Emilia Clarke as tough-as-nails Sarah Connor, Jai Courtney as Kyle Reese, and Jason Clarke as John Connor. The film will be shown in theaters on July 1, 2015.