BLACK LIGHTNING: Check Out The New Promo & Photos From Season 1, Episode 6 "Three Sevens: The Book of Thunder"

"Three Sevens: The Book of Thunder" - (9:00-10:00 p.m. ET) (TV-14, LV) (HDTV)

TO RIGHT THE WRONGS - Jefferson (Cress Williams) is on the hunt for his father's killer, while Anissa (Nafessa Williams) uses her new powers to rectify a wrong after a protest fails. Jennifer (China Anne McClain) grapples with some difficult choices. Elsewhere, Gambi (James Remar) begs for help from Lynn (Christine Adams). Damon Gupton and Marvin Jones III also star. The episode was written by Charles Holland and directed by Benny Boom (#106). Original airdate 2/27/2018.

Black Lightning -- "Three Sevens: The Book of Thunder" -- Image BLK106a_0093b.jpg -- Pictured: China Anne McClain as Jennifer Pierce -- Photo: Richard Ducree/The CW -- © 2018 The CW Network, LLC. All rights reserved.

Black Lightning -- "Three Sevens: The Book of Thunder" -- Image BLK106a_0396b.jpg -- Pictured (L-R): Marvin "Krondon" Jones III as Tobias and Charlbi Dean Kriek as Syonide -- Photo: Richard Ducree/The CW -- © 2018 The CW Network, LLC. All rights reserved.

Jefferson Pierce (Cress Williams) is a man wrestling with a secret. As the father of two daughters and principal of a charter high school that also serves as a safe haven for young people in a New Orleans neighborhood overrun by gang violence, he is a hero to his community. Nine years ago, Pierce was a hero of a different sort. Gifted with the superhuman power to harness and control electricity, he used those powers to keep his hometown streets safe as the masked vigilante Black Lightning. However, after too many nights with his life on the line, and seeing the effects of the damage and loss that his alter ego was inflicting on his family, he left his Super Hero days behind and settled into being a principal and a dad. Choosing to help his city without using his superpowers, he watched his daughters Anissa (Nafessa Williams) and Jennifer (China Anne McClain) grow into strong young women, even though his marriage to their mother, Lynn (Christine Adams), suffered. Almost a decade later, Pierce’s crime-fighting days are long behind him…or so he thought. But with crime and corruption spreading like wildfire, and those he cares about in the crosshairs of the menacing local gang The One Hundred, Black Lightning returns — to save not only his family, but also the soul of his community.