When the Examiner selects Tim and Caitlin to star in a recruitment video, their disguised identities go to their head. Meanwhile, Chris agrees to partner Marcus in a TV quiz but will his nerves hold.
When Tim finds himself on an assassin's hit list, he realizes this may be his last time to romance Caitlin. Meanwhile, Marcus is hoping to humiliate Nick at Justine's dinner party.
Tim falls for a woman in Witness Protection, Chris and Judith team up to get rid of her. Meanwhile, Marcus tries to teach himself how to ride a bicycle.
When new boy Nick stands against Marcus for school president, Tim tries to help his campaign. Meanwhile at MI5, Tim attempts to sabotage Caitlin and Portis' relationship with some dubious advice.
Chris' efforts to turn Marcus into a celebrated author get out of control when he tells a few too many lies. Meanwhile, Tim tries to sabotage Portis' preparations for Caitlin's birthday.
Tim's identity as an MI5 officer risks being revealed when he is forced to take Marcus to work with him. Meanwhile, Owen leads Philip and Judith in an elaborate role play exercise.