Emily Longeretta Derek Haas is redefining the word “multi-task.” The executive producer and co-creator of “Chicago Fire” began showrunning his second show last year with the launch of “FBI: International,” the first Dick Wolf series shot entirely out of the country.During a phone interview with Variety, Haas — currently on set in Budapest — explains that he’s been on location four times since the show began production.“We travel around a lot. We’ve shot in the Swiss Alps, Paris, Prague. So we can usually send a crew for a couple of days, and we strategically write it so that maybe just a limited amount of our cast is in those locations at any one time,” the executive producer explains.