We discover Roy's family as they settle into their new town and Roy's first day at school causes quite a commotion.

The children and Miss Sheringham are upset when Mr. Hammond decides that they must dissect frogs in their science lesson. Roy thinks he has the perfect plan to save the creatures but is he out of his depth?

A flu epidemic has hit Ballyfermot and Roy finds himself the only student in his class. He is determined to get ill so he can have time off like his classmates but can a cartoon boy get sick?

Roy and his classmates take part in a competition to raise the most money for charity. Roy finds his fund-raising ideas going badly wrong, especially when he turns his hand to busking.

Roy takes his new games consul to school but has it taken off him by Mr. Hammond. He goes wandering around the school to get it back but can he do it without the teachers noticing the world's only cartoon boy is missing from class?

Mr. Hammond announces that a talent show is coming to the school and one of the judges will be its most famous ex-pupil - Tara Loveworth. Mr. Hammond believes he has played a part in Tara's success but will Roy and his classmates be able to follow in her footsteps? Roy forms his own "Roy band" for the contest but will they be able to strike the right note?

Roy annoys his mum by messing about in the kitchen and she tells him to go away. He decides to teach her a lesson by going on the run but is Roy cut out for survival?

Roy and Becky have been arguing so much that their parents feel they need a break from them so they are sent off on a caravanning weekend with their grandparents. Will brother and sister be able to get along better while their parents have a restful weekend?

Roy goes to see a horror movie against his parents' instruction and then has nightmares that keep the whole family awake. Cathy teases him about getting scared but can he overcome his fears and get his own back on her?

Becky becomes a vegetarian and Maura cooks a nut roast for the family. Roy is less than impressed with the new food and pulls a face which then freezes as it gets caught in the wind. He is hugely embarrassed but nothing seems to change it so maybe he will have to face up to his new look.

Roy and his classmates have to take part in key tests with Mr. Hammond determined the school gets good results to finish high in the league tables. Roy's parents go to see his teacher Miss Sheringham and it is clear she doesn't expect Roy to do well - and nor does he. Roy gets particularly worried when Kathy tells him he might be sent to a special school if he doesn't do well. Roy seeks some advice from top student Tommy on how to do well but takes it rather literally.

The students have hacked into the school computer to prevent the teachers printing test papers but Roy accidentally gives away the new password. The other children are annoyed with him and an angelic halo appears over his head to his huge embarrassment. Roy wants to get rid of the halo but how can he now change his new reputation?

An inspection is due at Ballyfermot and Mr. Hammond is determined that the school - and him - get an excellent report. He thinks the way to do this will be to make sure Roy is absent on the day but could his devious plan backfire?

Mr. Hammond is desperate to win a football trophy so tells PE teacher Mr. Hogan not to pick Roy for the team. Mr. Hogan has to make up a reason and suggests to Roy he needs to improve his fitness but Roy gets the wrong impression and believes he needs to lose weight. His fitness efforts leave him with an even slimmer chance of making the team.

Roy really wants to have a pet dog but his parents say he isn't responsible enough. At school Kathy teases Roy about this but Roy's friends tell him she is scared of dogs so he decides to pretend to be one and chases her around the hall. However Roy's act becomes more convincing than anyone could expect.

After yet more mishaps Roy's parents and friends try to boost his confidence and self-belief. However things go so far that Roy becomes so admired that his head literally becomes bigger. It fills with extra knowledge and he unexpectedly becomes an expert on everything - surely the person who can make sure that the school wins a vital quiz that is so important to Mr. Hammond?

Roy feels left out at school because all the other children are growing up, including getting spots. He binges on junk food and doesn't wash to try to get a spot but when he eventually succeeds it causes him trouble he could never have expected.

Bill's elderly Aunt Bridie dies and the family want to know whether she will be leaving her money to them or to Bill's flash brother Danny. Roy's special skills might help them find out the answer.

Roy seems even more accident-prone than usual and his family are desperate to keep him out of harm's way. However they can't prevent another mishap which results in him being shrunk down to five inches tall. While this has its advantages it also has its share of problems and might put his parents' anniversary plans in trouble.

It's Valentine's Day and against the odds Roy starts to feel attracted to arch-enemy Kathy, upsetting Sinead. It seems Miss Sheringham has had a card and been invited out by Mr. Hammond but how does she feel about his interest? Becky feels good after receiving a card unexpectedly but who is her secret admirer?

Roy damages his dad's car when a skateboarding trick goes wrong but soon things get even worse. He tries to put things right by getting a Saturday job and working for magician Magical Mickey but will it be just the trick or not so magical after all?

Jack is behaving strangely, showing no interest in football and snapping at his friends. Roy tries to find out the reason by following him but gets spotted. However Roy makes a remarkable discovery with a rubber and finds a way that he can find out the truth about Jack - and have other fun as well.

Roy's dad Bill likes to think of himself as a DIY expert and lands himself a decorating job for Mrs. Sweeney and Roy is keen to help. However Mrs. Sweeney is a fearsome woman and Maura and Becky are scared in case Bill and Roy fail to do a good job.

Roy feels left out because he doesn't have a new computer game unlike his classmates. A bad angel appears on his shoulder suggesting he get hold of it in the wrong way but a good angel warns him not to. Which way will Roy turn?

Mr. Hammond injures himself when one of his science experiments goes wrong. He decides to stop teaching science for a while but recruiting a substitute teacher is difficult. However Roy feels he has the solution in his Uncle Troy but there's something about Troy that makes Miss Sheringham believe he isn't all he seems.

An inspector - Marjorie Hegarty - arrives to do a review on Roy's progress. Mr. Hammond is worried but not for Roy's sake unlike the children and Miss Sheringham. The review brings to mind much of the mayhem Roy has been involved in. Will Ms Hegarty decide that Roy needs to leave Ballyfermot Primary and go somewhere else?