The Harmony Unleashed Saga: Harmony Jaeger 4Ever

is an American superhero action comedy film produced by Hollowfox Filmworks, Allspark Pictures, Gary Sanchez Productions and distributed by 20th Century Fox (in North America) and Buena Vista International (internationally) with Toei Company distributing it in Japan alongside Fox and Buena Vista. It is the fifteenth installment of the Harmony Unleashed Saga's series of films as well as the third Harmony Jaeger film.

It is directed and starred by Aaron Montalvo and written by Montalvo, Jeff Davis (Teen Wolf), Guillermo Amoedo and Nicolas Lopez (The Green Inferno) and it was released on August 30, 2018.

A PG-13 version of the film with additional writing and minor modifications by Kevin Burke and Chris "Doc" Wyatt, titled The Tale of Harmony Jaeger 4Kids, is released on June 7th, 2019 in theatres, and later on September 24, 2019 on home video and digital.

Premise
After a turnaround with a new member of the SBO, Aaron gathers new and old allies to team up not only to get revenge on the member he betrayed for his own power, but also for the power of the darkness that Equestria fears.