Bones: Season 4, Episode 1

4 - 1: Yanks in the U.K., Part 1

This two-hour season premiere, begins when Booth and Brennan are in London for a conference. They are then called upon to help solve a case in collaboration with a pair of investigators from London. Meanwhile, Angela's estranged husband, Grayson Barasa, is finally found, but he refuses to sign the divorce papers, much to the dismay of Hodgins and Angela.