The Quintessons trick the Decepticons into releasing the dangerous Trans-Organics. One of them, the Dweller, begins taking control over Autobots and Decepticons alike.
| Title | The Dweller in the Depths |
|---|---|
| Genres | Animation Kids Action & Adventure Sci-Fi & Fantasy |
| Release Date | 1986-10-29 |
| Episode Runtime | 00 Hours 22 Minutes |
| Season Number | 3 |
| Episode Number | 18 |
| Production Companies | Hasbro, Sunbow Productions, Marvel Productions, Toei Animation |
