Optimum Condtions is the seventh and final episode of series 2.
Mike is throwing a party to celebrate the end of exams, but is keeping it under the radar to ensure only the cool crowd get to hear about it. Beth gets a huge shock when her previously flawless academic record is 'tainted' with a B, and rather than getting into the party spirit, begins to question her whole identity as 'the smart one'.
Beth's not the only one with doubts. The future is still uncertain for Jamie and Laura, who are now officially a couple, but Jamie is concerned that Laura's not really into him as she won't 'go public' with the news and tell her parents or friends.
Alan's also got some persuading to do: he tries to drag Janet back to counselling as he's feeling neglected by her spending so much time at work. Things take a turn for the better when Janet surprises him with a planned weekend away but the purpose of the trip is not quite what Alan expected.