The CBS drama Tracker returned with a new episode on April 26, 2026, taking viewers on a dangerous trip to Alaska. Season 3 Episode 18, called Alaskan Wild, follows Colter Shaw as he searches for answers about his father’s death while also helping a teenage boy find his missing parents. The episode mixes personal drama with a tense missing persons case, and a strong group of actors brought this story to life. Here is a complete look at who played which character in this exciting episode.
The Main Actors Returning For Episode 18
Justin Hartley leads the show as Colter Shaw. Hartley, known for his role on This Is Us, plays a lone-wolf survivalist who travels across the country finding missing people for reward money. In this episode, Colter goes to Brineport, Alaska, to find a man named Buck Avery. He believes Buck has information about his father Ashton, who was killed 20 years ago. While working on this personal mission, Colter gets pulled into a case involving a teenager named Ian. The boy‘s parents disappeared from their boat, and Colter agrees to help even though Ian has no money to pay him. Hartley has played Colter since the show started in 2024, and he is also an executive producer on the series.
Chris Lee returns as Randy, the team’s computer expert. Randy does not travel to Alaska with Colter in this episode, but his hacking skills are very important to solving the case. He tracks down the missing parents’ boat using online tools and discovers where the kidnappers took them. Randy also taps into the kidnappers’ jeep to find their final location. This helps Colter rescue Ian’s mother at the end of the episode. Randy has become a key part of Colter’s team because he can find information that no one else can get.
Fiona Rene plays Reenie Greene, a lawyer and one of Colter’s close friends. In Episode 18, Reenie is not involved in the Alaska case. Instead, her own story takes a scary turn. She and her partner Maxine are suing someone, and a judge lets them add wrongful death charges to the case. Soon after, Reenie notices a stranger following her. Someone drops off a package at her office filled with photos of Reenie. She becomes very worried for her safety and buys a gun to protect herself. Rene is known for her work on The Lincoln Lawyer, and she brings a strong presence to every scene she is in.
Cassady McClincy Zhang appears as Melanie “Mel“ Day, Reenie‘s assistant. Mel joined the Tracker cast more recently, and she is becoming a more important part of the team. Fans of The Walking Dead will recognize McClincy from her role on that long-running show. In this episode, Mel continues to work with Reenie during the lawsuit troubles.
Special Guest Stars In Alaskan Wild
Brad Beyer plays Hal Morrison, the father who goes missing with his wife. Hal and his wife Vera take their boat out, but two dr*g dealers kidnap them. During a shootout, Hal gets shot in the shoulder, and the kidnappers leave him behind on a trail. His wife Vera continues with the kidnappers because she knows the area well. Beyer has appeared in shows like For All Mankind and The Birch, bringing real emotion to the role of a frightened husband and father.
Marie Ward plays Vera Morrison, Ian’s mother and Hal’s wife. Vera is a strong character who does not give up even when things look very bad. After the kidnappers take her, she waits for the right moment to fight back. In the final scene, Vera helps Molly, one of the kidnappers, when the other kidnapper TJ tries to hurt her. This brave act leads to a gun going off, which alerts Colter so he can rescue everyone. Ward has been in Finding Her Edge and Slasher.
Levi Meadan plays TJ, one of the two drg dealers who kidnap the Morrison family. TJ and his girlfriend Molly stole drgs from a dangerous dr*g lord named Griffin. When they try to sell the stolen goods, the buyer recognizes the shipment and tells Griffin. A shootout happens, but TJ and Molly escape with Vera and Hal. Later, when Griffin catches up to them, TJ makes a deal to save his own life. He agrees to give up Molly’s location in exchange for his freedom. Meadan has appeared on The Rookie and in the film Unspeakable.
Lillian Doucet-Roche plays Molly, TJ’s girlfriend and Griffin’s ex-girlfriend. Molly believed she could steal dr*gs from Griffin and get away with her new boyfriend TJ. This choice puts many people in danger, including the Morrison family. When TJ betrays her to save himself, Molly is left alone to face Griffin’s anger. Doucet-Roche has been in The Miracle Season and A Cinderella Story: Christmas Wish.
Michael O’Neill plays Buck Avery, an older man who lives in Alaska and knows about Colter’s father. Colter tracks Buck down because his family used to lease land to government contractors. That land had a secret research lab where Colter’s father worked before he died. Buck tells Colter about a scientist named Dr. Serena Euckidge who might have more answers. O’Neill has appeared in many shows and movies, including Dark Sanctum and Happy Face.
Episode Details And What Happened In Alaska
Tracker Season 3 Episode 18 aired on CBS on Sunday, April 26, 2026, at 9:00 PM Eastern Time. The episode was written by Travis Donnelly and Dominique A. Holmes, and Dave Barrett was the director. The official synopsis from CBS says:
While searching for answers about his father, Colter is pulled into a tense case involving a teenage boy’s missing parents, uncovering a dangerous situation far more complicated than it first appears.
The episode begins with Colter going to Alaska to find Buck Avery. Colter has been reading his father’s old journals and notes. He learns that his father was a professor at Berkeley until something happened and he lost his job. After that, Ashton Shaw moved his whole family to a compound in the forest. Colter discovers his father was working with something called the Chronostasis Institute. Buck explains that government contractors had a secret lab on his family’s land. The lab was funded by DARPA and ran experiments involving the weather and the northern lights. Then there was an accident, and the whole lab closed down as if it never existed.
While leaving Buck’s property, Colter finds a teenage boy trying to break into his car. The boy is Ian Morrison, and he tells Colter that his parents are missing. Ian has no money to pay Colter, but Colter agrees to help anyway because the area has dangerous people living in it. Colter follows the trail of the parents’ boat and learns that TJ and Molly took them. The couple had stolen drgs from a dangerous drg lord named Griffin and were trying to sell them. When Griffin finds out, he tracks them down. There is a shootout, and Hal gets shot. The kidnappers leave him behind but keep Vera with them.
In the final scene, TJ makes a deal with Griffin to give up Molly in exchange for his own life. Griffin starts hitting Molly, but Vera comes to her rescue. During the fight, Griffin’s gun goes off, and Colter hears the noise. He arrives in time to stop Griffin and save both Vera and Molly. Ian is finally reunited with his parents, safe and alive.
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What This Episode Means For The Rest Of Season 3
At the end of the episode, Colter calls his brother Russell Shaw and leaves a voicemail. He tells Russell about the government cover-up he discovered and gives him the name Dr. Serena Euckidge. He asks if Russell wants to help him track her down. This sets up a major return for Jensen Ackles as Russell Shaw in the season finale. CBS has confirmed that Ackles will appear in the Season 3 finale on May 24, 2026. The finale is called The Best Ones, and the official description says Colter and Russell will search for a victim of a bad research project. This connects directly to what Colter learned in Episode 18 about his father’s work at the secret lab.
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