In season 2 of Jessica Jones, the main “villain” is Jessica’s mom, Alisa (Janet McTeer), who is somewhat stronger than the superpowered Jessica, and has anger-management issues. In other words, the central conflict of the 13-episode Netflix series would evaporate if Jessica (Krysten Ritter) just pulled out her cell phone and called crosstown to Luke Cage for some invulnerable superpowered backup. (This story contains spoilers for season 2.