Ep 1. Yanks in the UK, Part 1

Bones season 4 episode 1, titled "Yanks in the UK, Part 1," follows forensic anthropologist Dr. Temperance "Bones" Brennan (Emily Deschanel) and FBI Special Agent Seeley Booth (David Boreanaz) as they travel to London to assist with a murder investigation.

The episode starts with Brennan and Booth receiving an invitation from Scotland Yard to help solve the murder of a wealthy American heiress named Millicent Shelton. As they arrive in London, they are welcomed by junior inspector Cate Pritchard (Caroline Rhea), who serves as their liaison with the local authorities.

Brennan and Booth face a culture shock as they adjust to the unfamiliar surroundings and encounter different law enforcement procedures. They also discover that Millicent was killed in a manner reminiscent of the notorious Jack the Ripper, further adding to the mystery.

Throughout the investigation, Brennan and Booth interview several suspects, including Millicent's husband Robert, her business partner Roger, and her nephew Nigel. They also interact with British forensic scientist Dr. Ian Wexler (Eddie McClintock), who provides a different perspective on forensic analysis.

Meanwhile, back in Washington D.C., the rest of the Jeffersonian team tries to solve a separate case involving a burned body found in a dumpster. The team includes Brennan's assistant Angela Montenegro (Michaela Conlin), her partner Jack Hodgins (T.J. Thyne), and forensic artist Dr. Camille Saroyan (Tamara Taylor).

As the episode progresses, Brennan and Booth discover surprising connections between the two cases, despite being in different countries. They also face personal challenges, with Brennan feeling homesick and Booth encountering his old army buddy, Sergeant Major Ross (Enrico Colantoni).

Overall, "Yanks in the UK, Part 1" serves as an exciting start to season four, with plenty of twists and turns to keep viewers engaged. It showcases the dynamic between Brennan and Booth in a new setting, while also introducing new characters and plotlines. Fans of the show and newcomers alike will find themselves hooked from start to finish.