Season 1

Charlie Hudson, a seasoned detective with the St. John’s Major Crimes Unit, begins working with Rex — a highly trained German Shepherd — after the tragic loss of his previous partner. Although initially skeptical, Charlie quickly realizes Rex is not just smart, but a loyal and invaluable companion. Together, they take on a variety of complex cases including murders, kidnappings, and blackmail. Season 1 establishes the strong bond between man and dog and introduces the core team: Sarah, the brilliant forensic pathologist; Jesse, the tech expert; and Donovan, their commanding officer.

Season 2

Hudson and Rex continue solving increasingly dangerous and intricate cases. One particularly intense storyline involves a figure from Rex’s past resurfacing, leading to a tense showdown with a deadly criminal. This season dives deeper into the characters’ backgrounds and personal dynamics within the team. Jesse’s tech genius proves invaluable, while Sarah becomes more emotionally connected to both Charlie and Rex.

Season 3

Season 3 turns up the suspense with bizarre and unpredictable cases. From a murder at a dog show to a mysterious death inside a mansion cut off by a storm, each episode presents a new challenge that demands perfect teamwork from Hudson and Rex. The emotional depth between characters grows stronger, especially the bond between Charlie and Rex, which now resembles that of true brothers.

Season 4

This season opens with a chilling case involving two hikers murdered along a remote coastal path. The investigation leads the team to a mysterious campground and a pair of fugitives hiding in the woods. The crimes take on a more psychological edge, requiring the team to dig deep into the minds of the perpetrators. The episodes also highlight the emotional toll and personal sacrifices police officers endure in the line of duty.

Season 5

When a young woman vanishes in the rugged terrain of The Barrens, Hudson and Rex must race against time to find her. Season 5 brings a wide variety of cases, including poisonings, cybercrimes, and elaborate criminal conspiracies. It also introduces Dr. Karma Poole, a sharp-minded criminal analyst whose presence adds new expertise and depth to the team’s investigations.

Season 6

Though only six episodes long, Season 6 opens with a gripping mystery — a whale-watching boat returns to harbor with no passengers onboard. Hudson and Rex launch an urgent investigation to uncover what happened to the missing tourists. The episodes explore deeper emotional themes such as loss, trust, and perseverance in the pursuit of truth.

Season 7

The latest season kicks off with a murder case that escalates into a kidnapping, leading Hudson and Rex to Bell Island. There, they uncover a tangled double homicide plot. The cases this season are complex and dramatic, revealing more about the personal histories and motivations of the main characters.