Fatal Connection. The Extractor Series, #10

Bridge and Nicole are hired to find a missing man and woman who stole company plans, and money, from the woman's father. They'll soon learn they're on a time crunch, as the stolen plans are scheduled to be sold rather quickly. Their investigation takes them to Europe, where they have to sort through numerous false identities before they're able to track their targets down. But before they find their suspects, they'll have to battle several crime syndicates in order to get to what they're really after.