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Mac Walker Books in Order

Part ofDW Ulsterman Books in Order

Follow the Mac Walker books by D.W. Ulsterman in order, with concise summaries, series background, and a starting point for the military thriller saga.

Last updated: July 15, 2026

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Mac Walker books in publication order

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6 books

1

Dominatus: Liberty. Freedom. Family.

by DW Ulsterman

2013

After the United States falls, a small community in Alaska's interior clings to personal liberty under the rule of the New United Nations. Mac Walker and the survivors prepare to fight for their freedom.

2

Mac Walker's Betrayal

by DW Ulsterman

2013

In the aftermath of Benghazi, former Navy SEAL Mac Walker faces a betrayal that reaches beyond one failed mission. As hidden agendas close in, he must decide who is worth trusting and what truth is worth risking.

3

Mac Walker's Regret

by DW Ulsterman

2013

This Mac Walker story returns to the former Navy SEAL's world of missions, consequences, and difficult loyalties. Mac's hard-earned instincts are tested when the past refuses to stay behind him.

4

Tumultus

by DW Ulsterman

2013

Two years after the attack on Dominatus, Mac Walker and fellow survivors cross dangerous former Canadian territory seeking a priest and a weapon. Their mission may offer hope against the New United Nations regime.

5

Mac Walker's 40,000 Feet

by DW Ulsterman

2014

When terrorists hijack an airliner, former Navy SEAL Mac Walker teams with mysterious Vatican operative Stasia Wellington. Saving the passengers is only the beginning, as the hijacking conceals a far deadlier plot.

6

Mac Walker's American Jihad

by DW Ulsterman

2015

Former Navy SEAL Mac Walker has seventy-two hours to stop terror cells planning an attack on vulnerable Americans. Racing against time, he is pushed to the physical and mental limits of his skills.

Mac Walker books in chronological order

  1. Book cover for "Dominatus: Liberty. Freedom. Family."

    Dominatus: Liberty. Freedom. Family.

    by DW Ulsterman

    2013Mac Walker, Book 1
  2. Book cover for "Tumultus"

    Tumultus

    by DW Ulsterman

    2013Mac Walker, Book 2
  3. Book cover for "Mac Walker's Betrayal"

    Mac Walker's Betrayal

    by DW Ulsterman

    2013Mac Walker, Book 3
  4. Book cover for "Mac Walker's Regret"

    Mac Walker's Regret

    by DW Ulsterman

    2013Mac Walker, Book 4
  5. Book cover for "Mac Walker's 40,000 Feet"

    Mac Walker's 40,000 Feet

    by DW Ulsterman

    2014Mac Walker, Book 5
  6. Book cover for "Mac Walker's American Jihad"

    Mac Walker's American Jihad

    by DW Ulsterman

    2015Mac Walker, Book 6

Series background & context

The Mac Walker series is built around Mackenzie "Mac" Walker, a former Navy SEAL sniper and government gun for hire. Mac is a direct, battle-tested action hero who finds himself pulled into missions that begin as counterterrorism operations and grow into something much bigger. Across the books, he faces hijackings, terrorist cells, conspiracies, betrayal, and eventually a future shaped by authoritarian rule.

A good entry point is Mac Walker's 40,000 Feet. Mac is aboard a hijacked airliner when he forms an uneasy alliance with Stasia Wellington, a Vatican operative. Their fight to protect the passengers leads to a plot with stakes far beyond the plane itself. The novel establishes the series' brisk pace, blunt danger, and Mac's refusal to leave civilians behind.

Mac Walker's American Jihad raises the pressure by giving Mac only a short window to stop an attack planned by terror cells in the United States. The story keeps the focus tight and urgent. Mac is not a detective who waits for clues to line up. He is a man pushed into action, then forced to live with what that action costs.

He is a soldier first, but never just a weapon.

The series also includes stories set around the events of Mac Walker's Benghazi and the fallout explored in Mac Walker's Betrayal and Mac Walker's Regret. These books expand the political and personal pressures around Mac, including his complicated relationship with the institutions that hire him. Trust is rarely a safe choice in this world.

The scope changes sharply with Dominatus: Liberty. Freedom. Family. and Tumultus. These books move Mac into a post-collapse future in which the United States has fallen under the New United Nations. In remote Alaska, small groups of survivors fight for self-rule against a regime that uses technology, force, and fear to maintain control. The later arc blends military thriller action with survival fiction and dystopian adventure.

Readers should begin with Mac Walker's 40,000 Feet, then continue to Mac Walker's American Jihad. From there, the Benghazi and betrayal stories provide more background before the larger dystopian arc in Dominatus and Tumultus. The books are connected by recurring characters, escalating threats, and Mac's evolving idea of what he is fighting for.

Expect fast action, political conspiracy, violence, and a hero who prefers a clear mission but repeatedly finds himself in a world where the lines have been erased.

Edited by

Richard Reis

Software engineer whose passion for tracking book recommendations from podcasts inspired the creation of MRB.

Anurag Ramdasan

Lead investor at 3one4 Capital whose startup expertise and love for books helped shaped MRB and its growth.

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