The Last Frontier Episode 5: What Happens When Frank Searches for His Son?

The Last Frontier

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The cat-and-mouse chase in Alaska intensifies in the next episode of the new Apple TV+ thriller. Episode 5 of “The Last Frontier,” titled “Arnaq,” is set for release on October 31, 2025. The upcoming episode shifts the focus to a personal crisis for the main character, U.S. Marshal Frank Remnick, as the CIA increases its involvement in the manhunt.

Episode Release Schedule and How to Watch

Viewers can watch the new episode exclusively on Apple TV+. The release schedule follows the platform’s pattern of dropping new episodes every Friday.

The Last Frontier Episode 5 will premiere on October 31, 2025, at 12 a.m. Eastern Time (ET). For viewers in other time zones, this translates to:

  • Central Time: October 30 at 11 p.m.
  • Greenwich Mean Time: October 31 at 4 a.m.
  • Indian Standard Time: October 31 at 9:30 a.m.
  • Japan Standard Time: October 31 at 1 p.m.

You need an active Apple TV+ subscription to stream the series. The service offers a 7-day free trial for new subscribers, after which it costs $12.99 per month.

The Story So Far and What’s Next

The series follows Frank Remnick, a U.S. Marshal in Alaska, whose quiet jurisdiction is shattered when a prison transport plane crashes, releasing dangerous convicts. The most dangerous escapee is Levi ‘Havlock’ Hartman, a former CIA agent with a complex plan. In Episode 4, the search for Havlock was sidetracked when two other convicts killed a state trooper. While Frank and CIA agent Sidney Scofield pursued them, Havlock connected with a Russian spy named Armen, who originally stole the classified files known as Archive 6. The episode ended with both Frank and Havlock racing to find a courier who possesses the valuable archive.

The official synopsis for Episode 5 states:

Frank focuses on tracking down Luke. The CIA’s involvement ramps up as Havlock’s plan enters a new phase.

This indicates a significant turn in the story. After episodes focused on the community-wide threat and the pursuit of Havlock, Frank’s personal dilemma as a father takes center stage. His son, Luke, was last seen with his girlfriend, Kira, and the dangerous convict Isaac Romero. At the end of Episode 4, Luke bravely told Kira to escape, leaving him alone with Romero. Frank and his wife Sarah’s search for their son will now become a primary driver of the plot. Meanwhile, CIA agent Sidney Scofield’s mission to stop her ex-husband, Havlock, is set to become more intense, promising increased conflict and action.

Meet the Cast of the Alaskan Thriller

Jason Clarke leads the cast as Supervisory Deputy U.S. Marshal Frank Remnick. He is supported by an ensemble cast that includes Dominic Cooper as the cunning fugitive Levi ‘Havlock’ Hartman and Haley Bennett as CIA agent Sidney Scofield. The cast also features Simone Kessell as Frank’s wife, Sarah Remnick, and Tait Blum as their son, Luke. Alfre Woodard plays Jacqueline Bradford, a senior CIA official.

“The Last Frontier” is created by Jon Bokenkamp and Richard D’Ovidio. The series premiered on October 10, 2025, with its first two episodes. New episodes are released weekly, leading to the season finale on December 5, 2025.

Also Read: The Last Frontier Episode 4: What is Frank Remnickโ€™s Dark Secret?