Teen Wolf star Tyler Posey RTX2H360
Actor Tyler Posey arrives for the iHeartRadio Much Music Video Awards (MMVAs) in Toronto, Ontario, Canada June 19, 2016. Reuters/Peter Power

"Teen Wolf" cast members Dylan Sprayberry as Liam Dunbar, Tyler Posey as Scott McCall, Holland Roden as Lydia Martin, Melissa Ponzio as Melissa McCall, Dylan O'Brien as Stiles Stilinski, Linden Ashby as Sheriff Noah Stilinski, JR Bourne as Chris Argent and Shelley Hennig as Malia Tate will have an upcoming episode titled "After Images," which airs on Aug. 13 in the US. It will feature Scott and his friends looking for a missing werewolf.

Spoiler alert: This update contains more 'Teen Wolf' spoilers. Continue reading only if you want to know more about what happens in 'After Images.'

According to Zap2it, MTV's "Teen Wolf" season 6B, episode 13 will show Scott and his friends searching for a werewolf that has been missing. Meanwhile, Argent and Melissa will encounter a strange body that they will investigate.

A preview video of the episode was posted on the show's official Facebook page. It shows Nolan (Froy Gutierrez) being curious about organisms, evolution, change and DNA. He seems a little too curious about it, which seems suspicious.

"I wonder if organisms can change and then change back?" Nolan asked the other boys who are studying for a test. "Like, they can be two things at once," he added. "That's definitely not on the test, or any high school test," one of the guys pointed out to him.

The Internet Movie Database (IMDb) lists the other actors and actresses that will appear in this episode. These include Cody Christian as Theo Raeken, Khylin Rhambo as Mason Hewitt and Sibongile Mlambo as Tamora Monroe. "After Images" was directed by "Teen Wolf" star Tyler Posey and written by Jeff Davis.

'Teen Wolf' episodes: 'Raw Talent,' 'Face-to-Faceless' and 'Pressure Test'

"Teen Wolf" season 6, episode 12 titled "Raw Talent" was the episode that aired before "After Images." It aired on Aug. 6 and was directed by Tim Andrew. Brian Millikin wrote the episode, which showed Malia and Scott searching for the owner of a special bullet. They both think there's a new werewolf hunter in Beacon Hills. Meanwhile, Lydia faced her fears of Eichen House.

"Teen Wolf 6" airs in Australia on Fox 8. It airs in the US on MTV every Sunday at 8-9 pm EST. The next episodes that will be aired in the US are "Face-to-Faceless," which airs on Aug. 20 and "Pressure Test," which airs on Aug. 27. Stay tuned for more "Teen Wolf" spoilers and updates.

Watch 'Teen Wolf' videos from the show's Facebook page:

In case you missed it (ICYMI), read these:

'Teen Wolf' season 6B 'Raw Talent' spoilers: Lydia needs to be brave

'Teen Wolf' season 6B 'Said the Spider to the Fly' episode spoilers