1. Into the Wilds

When the sole witness against the son of a powerful mob boss goes missing in the woods, it's up to Mark, Rex and Jesse to track him down. The mob boss has already hired an assassin to find the witness.

2. Runaway Witness

A young lawyer is snatched off the street, but the team can't track her down until they locate the sole witness - a child who disappeared from the scene. Rex connects with the traumatized boy, who communicates primarily through drawing. The team races to uncover who is behind the kidnapping and at the centre of a money laundering scheme before the criminal rids themselves of their depreciating asset.

4. Of All the Gin Joints

An announcement on the future of the Devereaux Gin Distillery is cut short when the owner is found drowned in his own spirits. The three heirs to the family business become prime suspects as Rex sniffs out the secret ingredient behind a groundbreaking new gin recipe, while Mark revisits the night of the murder to put the family drama to rest.

5. Fortitude Newfoundland

When a survivalist competition broadcasts a finalist's body live on air, the team must figure out who was serious about burying their competition. Mark and Rex discover that the staged bear attack was actually murder, but the show must go on. Rex's keen hearing reveals a dead giveaway in the botched broadcast, leading the team to stage their own finale to catch the killer - live on TV.

6. Conspiracy Theory

When a conspiracy theory podcaster is found murdered just before her talk at the TruthCon conference, Mark, Rex and the team find themselves thrown into the extreme world of conspiracy theorists. They find that one of the theorists is Mark's old commanding officer, now afflicted with PTSD. In the end, it's Rex's relationship with the old soldier that might lead them to the real killer.

7. Criminal Rex

Sarah and Rex are kidnapped by an old enemy - criminal mastermind Rupert Mankiewicz. Mankiewicz's mission is to exact revenge by weaponizing Rex. Mark and Jesse launch a desperate investigation to find them before Mankiewicz can fulfill his deadly mission.

8. Bird's Eye View

Birdwatching tourists are ruffled when they spy the body of a landowner who had hidden the nesting site of the rare Red Crossbills from them. When the team unearths a ruby from a 25-year-old jewelry heist connected to the case, Rex tracks the birdsong to find the treasure at the secret nesting site, before the killer can get there first and destroy the endangered birds standing in his way.

9. All the Wrong Moves

When a pro wrestler is murdered days before a charity event, Mark and Rex must unmask the villain to save an animal shelter.

10. Murder Al Fesco

When a master painting instructor is pushed off a cliff, Mark and Rex scope out the art world to get to the bottom of a picture-perfect murder

11. Trial by Fire

When firefighter trainees discover a real cadaver during a controlled fire exercise, Mark and Rex follow one burning clue after another.

12. The Briny Deep

After a fisherman's body is reeled in with the morning haul, every suspect seems to have an alibi, but the team senses something fishy about the autopsy.

13. Heist for the Holidays (1)

After a robbery interrupts the team's holiday plans, Mark and Rex must track down the masked members of a Newfoundland mummering gang.

14. Heist for the Holidays (2)

With Rex and a puppy lost in the wilderness days before Christmas, Mark races to reunite with his partner.