SPOILER WARNING: This article contains major spoilers for "Crisis on Infinite Earths, Part 2," the second installment of this year's Arrowverse crossover, and "The Book Of Resistance: Chapter Four," the latest episode of Black Lightning.
While we knew Black Lightning wouldn't have an official chapter in The CW's "Crisis on Infinite Earths," we did know the hero would join up with the rest of the Arrowverse stars in the crossover. However, the episode titled "The Book Of Resistance: Chapter Four" of Black Lightning can be considered an unofficial part of the event.
Red skies and lightning, which is a sign of the antimatter wave flowing through the multiverse destroying Earths in its path, appear in the sky during the beginning of the episode. As Jennifer Pierce stands at her window watching the storm, she passes out and meets different versions of herself in the multiverse.
Anissa, Gambi, Jefferson Pierce and Lynn Stewart gather at Anissa's loft, where Gambi tells the family that the red storm is filled with antimatter, which Jennifer's cells are storing. This is what's causing her episode, where it appears her body is fading away.
A projection of Jennifer appears on Earth-1 to witness her father murdered in their house by the ASA. The Earth-2 Jennifer, referred to as Jinn, is a cold-blooded killer who uses her powers to kill her entire family when they try to have an intervention.
The episode ends with the antimatter wave wiping out their Earth, though Black Lightning is rescued by a flash of light, most likely Monitor or Harbinger recruiting him for Part 3.
Airing Mondays at 9 pm ET on The CW, Black Lightning stars Cress Williams as Jefferson Pierce/Black Lightning, China Anne McClain as Jennifer Pierce, Nafessa Williams as Anissa Pierce/Thunder, Christine Adams as Lynn Stewart, Marvin "Krondon" Jones III as Tobias Whale, Damon Gupton as Billy Henderson and James Remar as Peter Gambi.
"Crisis on Infinite Earths" continues in The Flash on Tuesday, Dec. 10 at 8 p.m. ET/PT. After the winter hiatus, the crossover will conclude on Tuesday, Jan. 14 in Arrow at 8 p.m. ET/PT and in DC's Legends of Tomorrow at 9 p.m. ET/PT.