Diego Aguirre

When Elizabeth discovers that the White House attackers had support from overseas, she tries to hunt down those responsible without starting a war; Henry meets one of the attackers.

When the leader of a drug cartel and one of the world's most wanted men is apprehended by the team, the entire FBI headquarters is put at risk when his henchmen unveil a plot to free him; Isobel must make a difficult decision.

Stateside strife taints Holmes and Watson's fresh start in London when someone close to them is wounded by an unknown perpetrator in the US. Meanwhile, Holmes' stateside legal trouble threatens to derail their efforts.

Sharpe struggles to cope when a case becomes a little too personal. Meanwhile, Frome discovers a patient's surprising past and Reynolds receives some difficult news.