Jefferson Pierce, who retired from his superhero persona Black Lightning nine years ago after seeing the effects it had on his family, is forced to become a vigilante again when the rise of the local gang called the 100 leads to increased crime and corruption in his community of Freeland.
Jefferson Pierce is a man wrestling with a secret. As the father of Anissa and Jennifer, and principal of a charter high school that also serves as a safe-haven for young people in a neighborhood overrun by gang violence, he is a hero in 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, but he left the Superhero days behind. Almost a decade later, Pierce’s crime-fighting days are long behind him…or so he thought.
As the community struggles with the violence surrounding them, a glimmer of hope appears: Is Black Lightning back? Lynn Stewart, noticing the changes in the community, is also left wondering. While Jefferson Pierce struggles with his decision, Gambi urges him to take up the mantle once more and return to life as Black Lightning. Anissa and Jennifer try to deal with the aftermath of their jolting experience.
As Jefferson Pierce tries to determine if the community can survive without the help of Black Lightning, Anissa starts to come into her own. Meanwhile, Jefferson and Lynn try and figure out their new dynamic. Finally, Jennifer reveals to her parents that she has been grappling with something big.
Black Lightning is recruited to rally against The 100 gang. Anissa investigates the new drug hitting the streets. Meanwhile, familiar faces begin to reappear.
An unexpected phone call unearths the long-buried need for Jefferson to investigate the murder of his father. Meanwhile, Annisa wrestles with the fact that her actions have dire consequences. Lastly, Jennifer learns the importance of controlling her temper – in all situations.
Jefferson is on the hunt for his father's killer, while Anissa uses her new powers to rectify a wrong after a protest fails. Jennifer grapples with some difficult choices. Elsewhere, Gambi begs for help from Lynn.
Black Lightning’s pursuit for Tobias continues. Anissa continues to find herself in the new normal.