Colin tries to take Howie's mind off his marriage problems by taking him to a local pub quiz night, but things go from bad to worse during a disastrous Mr & Mrs round, when he realises that his wife doesn't want to be with him anymore. Tate is torn between his increasing feelings for Pauline and his need to get a result for Sweeney, and when he accidentally discovers the location of the safe house he faces a big decision.