After Portis runs into a Tim-shaped obstacle while getting ready for Caitlin's birthday, Tim is given an extra incentive to try and win back Caitlin.
Chris's efforts to turn Marcus into an author backfires. Tim becomes an obstacle when Portis prepares for Caitlin's birthday.
Tim learns that he has a body double, just as all the agents do. Marcus is passed over when an official determines Arthur is the best candidate for the Brain Alliance. Moritz tries to steal a hostage's girlfriend.moreless
Mrs Godfrey takes over for Philip as headmaster, leading to Marcus taking over as school bookkeeper. Tim tries desperately to get a date for the school ball.
Tim falls for a woman in the witness protection program and must rely on his friends to bring him back into reality. Meanwhile, Marcus learns to ride a bike as part of his competition with Nick.moreless
When Marcus's chances at school president are threatened by a new student, Tim uses his new career path to gather incriminating evidence on the new student and Philip. Meanwhile, Portis takes some bad dating advice from Tim but still ends up getting closer to Caitlin.moreless
Jamie's and Laura's parents meet for lunch to discuss the future of their families.
Tim is preparing for Marcus' custody hearing, while Marcus and his schoolmates prepare their own case. At the start of the trial, Chris reveals that he is a solicitor who presents Tim's feelings for Caitlin as part of the case.moreless
Mark and Jeremy battle for the affection of their neighbour.