Queen & Country: The Definitive Edition, Vol. 1 by Greg Rucka, Steve Rolston, Brian Hurtt and Leandro Fernandez
This collection introduces SIS field agent Tara Chase who is sent all over the world in service to her Queen & Country. Meanwhile Director of Operations Paul Crocker walks a narrow tightrope between his loyalty to his people and the political masters that must be served.
It's always interesting to read these collections as each chapter can vary stylewise as different illustrations illustrate each chapter since this originally came out as separate issues. This very much feels like MI-5 which is one of my husband's favorite shows.