upon when it is explained that Anissa had been "in and out of hospitals" for a prolonged period after her initial injuries. Following a botched mission, Black Lightning arrives at Anissa and Grace's apartment with several other fugitive members of the new Outsiders, telling Anissa that he simply wishes to see his children again after spending months without any contact with his family. He briefly expresses discomfort over his daughter's sexual orientation, but Anissa tells him off by stating that Grace was there for her when he wasn't. When the Justice Society of America attacks the apartment to bring the Outsiders into custody, Anissa chooses to side with her father and fight off the attacking heroes, which ultimately leads to a confrontation with her younger sister, Lightning, whom she claims was always thought of as the "favorite". After the fight is broken up by Doctor Fate, Anissa and Grace choose to rejoin the Outsiders on a mission to Markovia, where Amanda Waller tasked them with capturing Geo-Force.<ref>Outsiders (vol. 4) #36</ref> Powers and abilities Thunder has the ability to increase her body's mass while preserving volume, which effectively increases her density. In this state she is near-immovable, almost completely invulnerable. A mob enforcer once suffered a compound fracture after trying to punch Thunder in the face. Notably, she can make her skin strong enough to withstand bullets. Just by stomping the ground she can create massive shockwaves. Other versions Kingdom Come In an alternate universe depicted in Kingdom Come, a young boy who inherited his father's powers and became the new owner of Thunderbolt operates as Thunder. In other media Television A teenage Thunder appears in the "Thunder and Lightning" segment of DC Nation Shorts, voiced by Cree Summer. Anissa Pierce appears in Black Lightning, portrayed by Nafessa Williams. This version's powers are activated by holding her breath. After being kidnapped by the 100 and rescued by her father Black Lightning, Anissa's powers begin to emerge. She later receives a suit from Peter Gambi, joins her father in crime-fighting as Thunder, and goes on to fall in love with and eventually get engaged to marry Grace Choi. Later in the series, Anissa adopts the alias Blackbird to operate as an independent vigilante in response to the A.S.A.'s oppression. Additionally, Williams makes cameo appearances as two alternate universe versions of Anissa in the episode "The Book of Resistance: Chapter Four: Earth Crisis".