From spoiler.tv:

Cast and producers from BONES have crossed the pond to shoot in London this month, the first time the series has shot at an international location or outside Southern California. Partners DR. TEMPERANCE BRENNAN (Emily Deschanel) and SPECIAL AGENT SEELEY BOOTH (David Boreanaz) make the trip from Washington, DC, to Scotland Yard as television’s most addictive and amusing procedural shoots scenes for a special two-hour premiere event airing Wednesday, Sept. 3 (8:00-10:00 PM ET/PT) on FOX.

Principal photography begins on Saturday, June 14. Shooting at various locations in and around London, including the Thames River and Oxford University, BONES production will be in the U.K. for several weeks to complete scenes for the show’s Season Four two-part premiere episode, “Yanks in the U.K.” Additional locations include shooting near the historic Tower Bridge, the stately Lambeth Palace, official residence of the Archbishop of Canterbury, as well as throughout the streets of the city.

“We are immensely pleased to be shooting our Season Four opener in England and are eager to work with the excellent cast and crew available in the U.K. BONES has never shot much more than a few miles outside of Los Angeles before, so we may as well start small by leaving the continent,“ said creator and executive producer Hart Hanson.

The premiere episode finds Brennan guest-lecturing at Oxford University and Booth speaking at Scotland Yard when they are asked by local officials to lend their expertise to a high-profile murder investigation involving a young British heiress.