We watched The CW’s Cult over the summer and loved it. However, its premise is difficult to explain. Luckily, the first episode’s synopsis was released, and it does a much better job than we ever could.

Matt Davis — who played Alaric on The Vampire Diaries — stars as Jeff Sefton. The investigative journalist has a wayward brother, Nate (James Pizzinato), who tends to obsess over various phenomena. So Jeff isn’t too concerned when his sibling insists that denizens of a popular TV show called Cult — it’s a show-within-a-show, so here’s where things get complicated — are trying to hurt him.

However, Nate’s sudden disappearance changes Jeff’s mind. Along with Skye Yarrow (Jessica Lucas), Cult’s research assistant, Jeff begins exploring the show’s passionate fanbase and the dark mythos surrounding it.

On Cult — the show-within-a-show — leader Billy Grimm (Robert Knepper) attempts to track down Kelly Collins (Alona Tal), an LAPD detective who used to be one of his followers, and bring her back to the fold.

The actors who portray Billy and Kelly, Roger Reeves (Knepper) and Marti Gerritsen (Tal), soon feel the show’s effects in their personal lives.

Still confused? Check out the full synopsis below. The show premieres Tuesday, February 19.

Season 1: "You’re Next"
MATT DAVIS OF “THE VAMPIRE DIARIES” STARS IN A NEW DRAMA — Investigative journalist Jeff Sefton (Davis) has learned to live with his younger brother Nate’s (guest star James Pizzinato “Alcatraz”) relentless string of obsessions, especially his latest rant that a hit TV show called “Cult” intends to harm him. When his brother mysteriously disappears, Jeff enlists Skye Yarrow (Jessica Lucas, “Cloverfield,” “Melrose Place”), a young research assistant working on “Cult,” to help with his investigation into the dark underworld of the TV show and its rabid fans. Meanwhile, in the parallel worlds of the show-within-a-show, the cult’s ruthless leader, Billy Grimm, is played by actor Roger Reeves (the double role of Billy/Roger is played by Robert Knepper (“Prison Break,” “Shameless”), a man whose primary agenda is winning back his former follower and lover, Kelly Collins, played by actress Marti Gerritsen (the double role of Kelly/Marti is played by Alona Tal (“Supernatural,” “The Killing”). Since escaping from the cult, Kelly has become an LAPD detective who finds herself drawn back into an investigation of the group’s activities as she struggles to keep Billy at a safe distance. As the television show grows in popularity, cast members Roger and Marti begin to feel the effects in their “real” lives. Jason Ensler directed the episode written by Rockne S. O’Bannon (#101).

Credit: YouTube Photo: The CW's Cult Preview Video: Hide Your Children, Billy Grimm Is Coming