Here’s the scoop on the changes going on at J.J.’s new show “Believe:”

LOS ANGELES (TheWrap.com) – Changes are still going down over at the much-buzzed about J.J. Abrams/Alfonso Cuaron supernatural series, “Believe,” for NBC.

Series co-creator and showrunner Mark Friedman (“The Forgotten”) has decided to leave the series over creative differences, TheWrap has learned. We hear his last day on the production was Friday. An individual close to the production says that though it was Friedman’s decision to leave, the split was amicable. Warner Bros. Television, which is also producing the series, and NBC declined to comment.

“Believe,” which Friedman co-created with director Cuaron (“Harry Potter and the Prisoner of Azkaban,” “Children of Men”) and is being produced by Abrams’ Bad Robot Productions (“Revolution,” “Person of Interest”) has been undergoing rewrites as the writers room has been taking a new direction for the series.

“Believe” follows Bo (Johnny Sequoyah), a young girl with mysterious powers who’s destined to change the world, and her protector Tate (Jake McLaughlin), who are both being hunted down by assassins.

As part of the recent changes in direction for the supernatural drama, actress Sienna Guillory, who played a hit-woman on the pilot, was written out as the series in order to focus on multiple international assasins after Bo and Tate.

The search is currently on to replace Friedman, who co-wrote the pilot with Cuaron. Bryan Burk executive produces the series alongside Abrams. NBC ordered “Believe” to series in March and slated it for a midseason debut.