On his first day, Ollie quickly finds himself out of his depth, driven up the wall by his incorrigible assistant Darren and alienating every client he works for, even getting embroiled in a paternity case. In the midst of it all he runs into an old crush, Emma, and manages to make an utter fool of himself in front of her.
Ollie decides it's time to modernise the family business and kicks into marketing overdrive to promote Curry and Sons Home Maintenance. His flyering campaign starts bringing in trade nicely, but little does he know they are ruffling some shady feathers. Things really kick up a gear when he discovers that his assistant Darren has been up all night playing violent online games with a web designer called Kat.
When Jeremy refuses to pay the full amount for a bathroom fitting, Ollie blocks his driveway with the van, refusing to move unless Jeremy coughs up. This act of rebellion starts to get the attention of the local community. Darren breaks his friend Irene out of an old people's home and promptly loses her.
Darren wakes up next to a beautiful woman, but what should be his dream come true turns out to be a complete nightmare - particularly when he has absolutely no clue as to who she is or how he got there. He's suffering from a dreadful hangover, and to make matters even worse, Darren opens the front door to find Ollie ready and waiting to start the day's work of fitting a fireplace in the very house Darren is trying to leave. Meanwhile, Ollie's crush, Emma, must face up to some serious money trouble with her financial backer in town. Her only hope is to quickly come up with some money-making ideas - could Ollie have the answers?
When Ollie finds his dad Tony trying to rustle up work in a suspect manner, he decides to draw a line and make sure the business runs by the book from now on. Almost immediately Emma convinces him to break into an estate agents for her with the help of the local burglar Ricky. Darren attempts to swap a blind woman's sofa with one he stained at his brother's flat.
Something is up with Ollie. He and Darren are building a wardrobe for Albert in a small room and tempers begin to flare. Before long it seems everyone Ollie knows is revealing secrets, leaving him with a big decision to make.
Ollie swaps the job book for a fancy new phone app, which soon lands him in hot water. Tensions between Emma and Liz rise, while Darren struggles to come to terms with fatherhood.
Ollie suspects Darren of moonlighting with a rival firm and hires a new assistant. Darren soon finds himself in way over his head. Meanwhile, Emma quickly wangles herself a promotion at work.
When Darren fails to turn up for work Ollie, Liz and Tony must investigate his whereabouts, unravelling an action-packed mystery.
Ollie inadvertently arranges a date with an old flame, Emma discovers that Tony has managed to get a date of his own, and Darren is left alone to work for a client with whom he shares a bitter past.
Ollie's dropped from his five-a-side football team in favour of a younger player, and takes the situation particularly badly. Meanwhile, Liz has a new boyfriend.