British

An extravagant house party at Downton Abbey gives the Crawley's a change to reconnect with old friends, however, some guests are more welcome than others.

Adam and Shruti struggle to help vulnerable patients, while a politician visiting the ward makes everyone's lives harder.

A crime wave has taken hold of Oxford. A debauched group of undergraduates are wreaking havoc across town, and the death of a uniformed copper sends shockwaves through Castle Gate.

Foyle is drawn into the murky world of international oil politics after a London university professor is found stabbed in a park.

Amid the fallout of the eventful house party, a trip to the bright lights of London is planned. Back at the Abbey, Mary faces a pressing question about her future.

While creating a memorial garden and helping to solve a murder, Laura tries to repair her relationship with her estranged daughter following her divorce.

Pop Larkin manages to sell the crumbling mansion next door, making enough on the deal to start building himself a swimming pool; he and Ma struggle to warm up to their new neighbours.

Everyone is very excited because Mick is to be interviewed on the news after discovering a body near his work place. Stacey is miserable and homesick because she still hasn't got a job or her own home.

After receiving threatening letters, an aristocrat is robbed of her famed diamond in front of Poirot's eyes.

The case of a missing mother and baby from 1971 is especially poignant for Brian Lane, a PC on the case at the time.

Halford visits a clairvoyant to contact his dead wife, but instead receives a message from Caroline, a teenage girl who was abducted and left to die in 1982.

Amid the fallout of the eventful house party, a trip to the bright lights of London is planned. Back at the Abbey, Mary faces a pressing question about her future.

Foyle is drawn into the murky world of international oil politics after a London university professor is found stabbed in a park.