Underdogs: A Pulse-Pounding Action-Thriller from the Sunday Times Bestselling Author of the Spider Shepherd Series

Underestimate this underdog at your peril . . .

Buckle up for Underdogs, an adrenaline-fueled action-thriller from the Sunday Times bestselling author of the Spider Shepherd series.

‘He has the uncanny knack of producing plots that are all too real’ – Daily Mail

Once a fearless SAS hero, Andy 'Deadman' Bird now battles the harsh streets of London after a catastrophic mission stripped him of his hearing, career, home and marriage. His only solace is Tyson, his fiercely loyal and battle-tested dog.

When fate thrusts them into the path of a chilling alleyway murder, Andy and Tyson become the next targets. Who are these relentless hunters, and what dangerous secrets are they willing to kill for?

Desperate and cornered, Andy reaches out to his former brothers–in–arms – a team who owe him their very lives. But as they unravel a sinister web of organised crime and deadly political plots, who will be saving who this time?

Praise for Stephen Leather:

‘Grabs the reader by the throat’ – Daily Mail

‘Explosive’ – The Sun

‘Enthralling’ – Financial Times

‘A master of the thriller genre’ – Irish Times

© 2026 Macmillan (Audiobook): 9781035083329

Release date

Audiobook: 12 February 2026