| Starship Deimos episode | |
| "Butterfly Effect" | |
| |
| Episode no.: | 14 |
| Prod. code: | D14 |
| Airdate: | 28 May 2020 |
| Running time: | 15:49 min |
| Writer(s): | Victoria Avalon |
| Director(s): | Randall Landers |
| Visual effects: | Ross Trowbridge |
| Music: | Chris Kroznuski |
| Guest star(s): | Ichabod Temperance, Ann Elliott Drew |
| Story year: | 2302 |
| Stardate: | 00228.6 |
| episode chronology | |
| Previous episode: | "Blood Crystals" |
| Next episode: | "Disharmony" |
"Butterfly Effect" was the 14th fan film under the umbrella title of Starship Deimos. It was written by Victoria Avalon and directed by Randall Landers.
Captain Sian Gabriel must make a difficult decision when the USS Deimos is thrust back in time 35 years to just before the USS Constellation's encounter with the Doomsday Machine.