

Relentless Collection
Film series follows Los Angeles Police Detective Sam Dietz
Relentless Collection Movies: Timeline & Franchise Overview
The Relentless Collection franchise spans roughly 5 years, featuring 4 interconnected films that build a shared narrative universe.
From its earliest installment to the most recent release, the series has expanded its world-building while introducing new characters and story arcs. Notable entries such as Dead On: Relentless II demonstrate the franchise’s ability to maintain audience interest over time.
Franchise Quality Benchmark
Across all entries, the series holds an average audience rating of 5.0. While many long-running franchises experience declining reception, this series continues to deliver memorable cinematic moments.
Viewing Order Strategy
Most viewers prefer watching the films in release order, which reflects how audiences originally experienced the evolving story.
However, a chronological viewing order can provide deeper insight into the timeline of events within the Relentless Collection universe.
Timeline & Watch Order
We recommend watching the Relentless Collection franchise in the following order to fully experience the narrative expansion.

Relentless
Two Los Angeles police detectives hunt for a serial killer who randomly chooses his victims from a phone directory....

Dead On: Relentless II
Detective Sam Dietz is paired with a shady FBI agent to track down another serial killer terrorizing Los Angeles....

Relentless 3
Sam Dietz, the relentless police detective, returns to Los Angeles from a self-imposed exile to help the police solve another series of brutal killings committe...

Relentless IV: Ashes to Ashes
Sam Dietz is back and must find and stop another serial killer before he kills again. Detective work for Dietz is tough having to juggle two gorgeous women - on...
Common Questions about Relentless Collection
How many movies are in the Relentless Collection?
There are currently 4 movies in the Relentless Collection, starting from Relentless to the latest release, Relentless IV: Ashes to Ashes.
What is the best order to watch the Relentless Collection?
The best way to watch the Relentless Collection is usually in release order: starting with Relentless and ending with Relentless IV: Ashes to Ashes. Check our timeline for the full chronological breakdown.
Which is the highest-rated movie in the Relentless Collection?
According to movieMx ratings, the fans have a strong preference for Dead On: Relentless II in this franchise.