Over the past few years, some of the biggest movie spoilers have come not from hard-working journalists breaking the story, but rather from toys, action figures and other merchandise. It seems our first details about the cast and plot of the highly-anticipated Lego spinoff, Ninjago, which is set for release on September 22, 2017, has come from a similiar source. Thanks to a Warner Bros. catalog on display at the Licensing Expo, we now have the first few cast members along with the official synopsis.

Brickset came across a photo taken at the Licensing Expo, which reveals that the Lego Ninjago voice cast includes Jackie Chan as Master Wu, Dave Franco as Lloyd, Michael Peña as Kai, Abbi Jacobson as Nya, Kumail Ninjiani as Jay, Zach Woods as Zane and Fred Armisen as Cole. No details were given about these specific characters, but we do have the first plot details. Take a look at the new synopsis below.

"Inspired by the wildly popular LEGO line of toys, Ninjago is the story of six young ninja tasked with defending their island home, called Ninjago. By night, they're gifted warriors, using their skills and awesome fleet of vehicles to fight villains and monsters. By day, they're ordinary teens struggling against their greatest enemy: high school."

Warner Bros. originally gave Ninjago a September 23, 2016 release date back in 2014, but last year the studio pushed it up by almost exactly one full year, now debuting on September 22, 2017. The animated movie is slated to go up against Sony Pictures' Granite Mountain next fall, which has Josh Brolin and Miles Teller attached to star. It remains to be seen when Warner Bros. will confirm these cast members, or when they will reveal the full voice cast.

Charlie Bean (Tron Uprising) will make his feature directorial debut with Lego Ninjago. It is being produced by Dan Lin, Roy Lee, Phil Lord and Chris Miller. Lord and Miller wrote and directed the smash hit The Lego Movie. Jill Wilfert, Seth Grahame-Smith, John Powers Middleton, James Packer and Steve Mnuchin are serving as executive producers. The screenplay is written by Bryan Shukoff and Kevin Chesley. We'll be sure to keep you posted with any official updates on Ninjago, but until then, take a look at this photo from the Licensing Expo which reveals the Ninjago cast and plot details.

Related: LEGO Ninjago Movie Trailer #2 Brings a New Kind of Hero to Comic-Con