Evolution season 3, episode 2, "The Zookeeper". While every fan wants Dr. Spencer Reid to return to Criminal Minds: Evolution, no one wanted him to return under such tragic circumstances the way the show has set it up.

Evolution" is starting Season 18 with a bang. The Paramount+ show shook things up in a major way in the second episode of the season, killing off a longtime character and fan favorite. During the episode,

Whenever things happen that tear the environment asunder, for better or for worse, it's Avengers Assemble in the biggest way we can,' says Kirsten Vangsness.