Tuesday, April 28, 2026

Tracker Season 3, Episode 18 Prepares for Jensen Ackles’ Return

Sunday’s episode of “Tracker” did not provide clear answers about Colter Shaw’s father but introduced new clues. Colter found Buck Avery, played by Michael O’Neill, and asked about his father, Ashton Shaw, who had been in the Alaskan wilderness before his death. Buck was cautious but confirmed he knew Ashton.

During their conversation, Colter explained details from his father’s journals, such as Ashton’s sudden departure from academic life and his move to an isolated area where he was involved with a group called the Chronostasis Institute. This caught Buck’s attention, as his family once leased land nearby to the government. This land contained a secret research facility that has since closed down.

Buck claimed the operation received funding from DARPA, which means it was linked to advanced military research. He noted that it included various experiments but ended abruptly due to an accident. This incident led to the facility’s sudden closure, making it seem like it never existed.

Buck then mentioned Dr. Serena Jukic, a researcher connected to the project, who might have information about what happened. He revealed that Ashton was in the area during the accident, but his intentions at the time are unclear.

The episode ended teasing the show’s finale. Colter left a voicemail for his brother Russell, revealing their father’s involvement in a government cover-up and suggesting they search for Dr. Jukic together.

Test Your Understanding

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Vocabulary List:
6 words · tap to reveal
ON

Accent

clues/kluːz/noun
small facts or signs that help solve something

wilderness/ˈwɪldɚnəs/noun
a wild area far from towns or people

journals/ˈdʒɝnəlz/noun
books where people write personal notes

isolated/ˈaɪsəˌleɪtɪd/adjective
far away from other places or people

facility/fəˈsɪləti/noun
a building used for a special purpose

experiments/ɪkˈspɛrəmənts/noun
tests to discover how something works

How much do you know?

Who played the character Buck Avery?
Michael O'Neill
Colter Shaw
Ashton Shaw
Dr. Serena Jukic
What group was Ashton Shaw involved with?
Chronostasis Institute
DARPA
Research Institute
Alaskan Wilderness Society
What funding source was linked to the operation discussed in the episode?
NASA
DARPA
CIA
FBI
What type of research was the secret facility involved in?
Medical research
Advanced military research
Environmental research
Technological research
Who is Colter Shaw's brother?
Buck
Ashton
Russell
Dr. Serena Jukic
What did Buck Avery claim caused the closure of the research facility?
Lack of funding
Government intervention
An accident
Completion of project
Colter Shaw's father is confirmed to be alive.
The conversation between Colter and Buck revealed no new information about Ashton's departure.
Buck claimed the operation linked to Ashton had never been funded.
Dr. Serena Jukic is a researcher connected to the project mentioned in the episode.
The episode suggests searching for Dr. Jukic together.
The episode provided a clear conclusion about the mystery of Colter's father.
Colter explained details from his father's journals about Ashton's sudden departure from academic life and his move to an isolated area where he was involved with a group called the .
Buck was cautious but confirmed he knew .
Buck noted that the operation received funding from .
Colter left a voicemail for his brother , revealing their father’s involvement in a government cover-up.
The episode ended teasing the show's .
Buck mentioned various experiments that ended abruptly due to an .
This question is required

Test Your Understanding

Start Quiz
Vocabulary List:
6 words · tap to reveal
ON
Accent
clues/kluːz/noun
small facts or signs that help solve something
wilderness/ˈwɪldɚnəs/noun
a wild area far from towns or people
journals/ˈdʒɝnəlz/noun
books where people write personal notes
isolated/ˈaɪsəˌleɪtɪd/adjective
far away from other places or people
facility/fəˈsɪləti/noun
a building used for a special purpose
experiments/ɪkˈspɛrəmənts/noun
tests to discover how something works

How much do you know?

Who played the character Buck Avery?
Michael O'Neill
Colter Shaw
Ashton Shaw
Dr. Serena Jukic
What group was Ashton Shaw involved with?
Chronostasis Institute
DARPA
Research Institute
Alaskan Wilderness Society
What funding source was linked to the operation discussed in the episode?
NASA
DARPA
CIA
FBI
What type of research was the secret facility involved in?
Medical research
Advanced military research
Environmental research
Technological research
Who is Colter Shaw's brother?
Buck
Ashton
Russell
Dr. Serena Jukic
What did Buck Avery claim caused the closure of the research facility?
Lack of funding
Government intervention
An accident
Completion of project
Colter Shaw's father is confirmed to be alive.
The conversation between Colter and Buck revealed no new information about Ashton's departure.
Buck claimed the operation linked to Ashton had never been funded.
Dr. Serena Jukic is a researcher connected to the project mentioned in the episode.
The episode suggests searching for Dr. Jukic together.
The episode provided a clear conclusion about the mystery of Colter's father.
Colter explained details from his father's journals about Ashton's sudden departure from academic life and his move to an isolated area where he was involved with a group called the .
Buck was cautious but confirmed he knew .
Buck noted that the operation received funding from .
Colter left a voicemail for his brother , revealing their father’s involvement in a government cover-up.
The episode ended teasing the show's .
Buck mentioned various experiments that ended abruptly due to an .
This question is required

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