Amy is sent undercover to investigate a team looking after a witness in protection after he witnessed a murder.
As Pete does some background checks he finds he is having problems tapping into one of the teams phones. Another member, Jimmy, who only recently joined the team is also cagey. Both Amy and Pete thought at first it couldn't be Jimmy since he wasn't involved from the beginning with the witness. Then Pete discovers that the other member of the team already has his phone bugged - with the same equipment that they use. Jimmy, it turns out, is also part of the Ghost Squad and he and his off-sided, Kay, are not impressed about not being told.
An interesting storyline that does have you wondering who is responsible for putting Brendan, the witness, in danger. Possibly the best episode so far, it will be hard to top.moreless