Sam Callahan books in order

The Sam Callahan series by Chad Zunker follows a former college athlete drawn into high-stakes tracking operations and international danger.

Reading order

# Title Published Author Buy on Amazon
1 The Tracker 2017 Chad Zunker Buy
2 Shadow Shepherd 2017 Chad Zunker Buy
3 Hunt the Lion 2018 Chad Zunker Buy

The Sam Callahan trilogy kicks off with The Tracker (2017), introducing a protagonist whose physical abilities and quick thinking put him at the center of dangerous situations. Shadow Shepherd (2017) and Hunt the Lion (2018) raise the stakes by sending Callahan into increasingly risky operations.

This was Chad Zunker’s first published series, and the three books are fast-moving action thrillers. The Sam Callahan books lean more toward international intrigue compared to Zunker’s later legal thrillers, giving readers a different flavor of suspense from the same author.

Frequently Asked Questions

How many books are in the Sam Callahan series?

There are three books in the Sam Callahan series, published between 2017 and 2018.

What is the first book in the Sam Callahan series?

The first book in the Sam Callahan series is The Tracker, published in 2017.

Who is Sam Callahan?

Sam Callahan is a former Stanford athlete who gets pulled into a world of fugitive tracking and international intrigue. His athletic background and resourcefulness make him effective in situations that would overwhelm most people.

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