When weapons designer Eliza Qwillen (Q) and Pierce Moneypence, clerk to the mysterious M, arrive in the English countryside, they're unprepared for the dangers that await. The operatives are intent upon capturing the highwayman styling himself as the New Sherriff of Nottingham. Secret rendezvous, mistaken identities, and cat-and-mouse games challenge these fledgling agents, but rediscovering their passion for each other is the most rewarding mission of all.