Season 2, Episode 4: Blood and Money

When $2 billion is stolen from the last British family-owned bankc in London, MI-5 is tasked by the government to track down both the thief and the money. Harry, however, is convinced there is something they are not being told and puts Danny in the bank, undercover. It becomes obvious that the bank has secrets and that the government is protecting it. When the CIA starts asking questions and the suspected thief turns up dead, the team starts to make links.