This release contains all episodes from season four of Vikings, the History Channel drama series chronicling the medieval adventures of a band of Norsemen.

Ever since their daughter was born, it was only a matter of time before Brennan (Emily Deschanel) and Booth (David Boreanaz) finally tied the knot. And while they do say "I do" in Season 9 in a TV wedding for the ages, it's not before an unforgettable proposal that involves the diabolical Christopher Pelant (Andrew Leeds), whose obsession with Brennan brings them closer than they've ever been. Of course, the couple's honeymoon in Buenos Aires turns into a busman's holiday when they help a detective investigate the murder of a Nazi war criminal. Back at the Jeffersonian, Angela (Michaela Conlin) and Hodgins (T.J. Thyne) discuss having another child; Sweets (John Francis Daley) takes a leave of absence; Cam (Tamara Taylor) is the victim of identity theft; Clark (Eugene Byrd) writes a novel; and Wendell (Michael Grant Terry) is jolted by news that could affect his future at the lab.