Criminal Minds: Season 3, Episode 20

3 - 20: Lo-Fi

The BAU faces one of its toughest cases when the team is called to New York City to determine if a series of random shootings is the work of one serial killer or a team of killers working together. The episode ends in a cliffhanger as everyone gets into their separate cars and then one of the SUV's explodes. This episode also announces to the team that JJ is pregnant.