As part of the Alliance, bear shifter Aidan McMillan hunts the Sons of Domnall, a secret society of humans sworn to destroy all shifters. Along comes werewolf Heidi Blackwood, his fated mate, and it suddenly becomes impossible to focus on the job.

New recruit Sean McMillan must investigate a double murder in his native Scotland. An easy job for a former police detective. Until local scientist Erin Reid starts showing a huge interest in him which disturbs his single-minded focus. Has he just met his true mate? 

Alison Campbell knows that shifters are evil and must be destroyed. In her efforts to infiltrate the Alliance on behalf of the Sons of Domnall, she meets Jamie Abbott, bear shifter and Alliance leader. He steals her heart and she no longer knows what to believe…

All four titles in the Alpha Squad series in one handy volume. Contains: Boot Camp, Friends & Foes, Infiltrator, and Showdown.