Season 1, Episode 4:
Storming the State Consulate of Turkey leaves Tom wounded and his girlfriend, Ellie, unable to accept any more of his lies. Tom is forced to reveal his real role to her and Maisie, but at work a more serious situation appears to be gathering momentum. Anti-Bush and anti-globalization rallies are planned in London and Danny and Zoe are sent to observe. Things become confused when they recognize a top MI-5 officer, who appears to be undercover, but whom they weren't told would be on the operation. Peter Salter (anthony Head), however, is a respected officer, so Zoe makes the decision to let him go. Hugh Laurie ("House") guest stars as head of MI-6.
Missed this episode? Read a recap here.