Criminal Minds: Evolution has premiered its latest season, with some outlets referring to it as season 19 and others as season 4 or season 3, indicating some uncertainty about the season's numbering. The season appears to be introducing dark storylines for characters Alvez and J.J., as well as a plot involving a character known as "The Fan". The BAU team is already facing challenges, with episode photos and recaps suggesting a intense and potentially devastating season ahead.