Stephen Amell
Still from Code 8 trailerCode 8 official

Arrow star Stephen Amell has been secretly working on something with his cousin Robbie Amell, for the past few months and he recently decided to share a teaser of it via his Facebook account.

This mystery project is a sci-fi movie called Code 8 and stars Robbie Amell and Fast & Furious actor Sung Kang. "I've been working on something. So has Robbie Amell & Sung Kang," Stephen wrote on Facebook.

The footage shows glimpses of Lincoln City, a place where "4% of people possess abnormal abilities" and "make up 60% of all arrests." Robbie seems to play one of these superhumans, while Kang is seen driving a police car before robotic reinforcements descend from a ship.

Not much is known about Code 8, but the Amells first debuted the teaser at the Heroes & Villains Fan Fest in Chicago, reports Entertainment Weekly. "Stephen and I have been trying to work together for a long time," said Robbie Amell. "We got a little taste of it on the Flash, Arrow crossover, and we've been putting this together since August with a bunch of friends and family, and calling in favors."

The Code 8 official website features a clock counting down to a reveal on 22 March, and an adjoining Facebook page lists Aaron Abrams (Hannibal), Chad Donella (Taken 3), and Alfred Rubin Thompson (Club Dead) among the cast. The film is directed by Jeff Chan and written by Chris Pare, both also producing with the Amells, Geoff Mclean, and Tommy Dingwall, states the EW report.