21 Jump Street and The Lego Movie directors Phil Lord and Chris Miller are bringing The Greatest American Hero back to TV in a new hourlong action comedy.

Stephen J. Cannell created the cult superhero adventure series, which debuted on ABC in 1981. Phil Lord and Chris Miller are developing the pilot alongside Stephen J. Cannell's daughter, TV director Tawnia McKiernan, with all three serving as executive producers. The show will be written and produced by Rodney Rothman, one of the writers on the sequel 22 Jump Street.

The new Greatest American Hero will follow inner-city teacher Isaac, who, like in the original, is granted a superhero suit by aliens which gives him extraordinary superhuman abilities. Accidentally misplacing the instruction booklet, Isaac must go through a painful journey of trial and error in learning how his new super powers work. He is also strapped with a government handler who has very different ideas about how the suit should be used. The origin series starred William Katt as The Greatest American Hero and Robert Culp as his handler.

The series only ran for two seasons on ABC before being cancelled. It is best remembered for its theme song 'Believe it Or Not', which has gone onto become it's own entity separate from the show itself, and was famously referenced in a Seinfeld episode.