It's opening day at Spatz, London’s latest fast-food sensation. But with only 4 hours to go, the manager, TJ Strickland, has much on his plate: the building is half finished and short-staffed, and Mrs. Frapelli, the owner’s wife, is about to arrive for the grand ribbon-opening ceremony featuring no ribbon and nothing to cut it with. Yet there’s even more chaos on the menu when an uninvited guest turns up and tries to put a squeeze on the festivities

Heavy metal man Vince Powers quickly changes his tune when he realises that the girl he’s got a crush on, Chloe, is a Mozart freak. Music of another sort is driving the staff out of their minds – it’s the brain-numbingly jolly Spatz jingle which Karen has had committed to a loop tape and insists on playing all day long. Meanwhile a customer called Mr. Fox loses his wallet at the same time as Vince becomes inexplicably well-off.

Toni Gordon is a girl with a problem. Two problems, actually: one, her mother and two, her father. The reason? In a moment of crisis and low self-esteem she wrote and told her Scottish parents that she's been promoted to the position of manager at Spatz. When Mr. and Mrs. Gordon unexpectedly turn up, Toni's forced to take control of the situation – and the restaurant. Meanwhile, Dexter loses all control in his bid to be the first employee to sell 500 hamburgers and win a corporate trip to Paris

While Karen racks her brains dreaming up yet more publicity gimmicks, TJ's much-derided first aid class gets a shot in the arm when Lily uses what she learnt to save a choking customer's life. Karen quickly sees a chance for some free newspaper coverage and plans to exploit Lily's heroic action for all its worth. There's just one problem: Lily adamantly refuses to cooperate because her dad has no idea she’s working here and would be appalled if he did. But when did Karen ever take no for an answer?

Dexter sets his sights high when TV soap star Cindy Stewart blows in for a bite at the restaurant. The question is, will she swallow fast-talking Dexter's outrageous claim that he's not really a greasy nobody but is in fact the son of the Senegalese ambassador? Meanwhile, TJ is having major pay-cheque problems when the central Spatz computer goes haywire and issues a grave announcement – that TJ is dead.'

A gang of teenage hoodlums starts hanging around the restaurant and Karen orders TJ to get rid of them. But when the self-styled Diablos return it's with revenge on their minds. When it is revealed that Vince used to belong to the gang, his loyalties are sorely tested as he comes to wrestle with the problem.

A protest group calling itself Planetwatch pickets the restaurant, ruining Karen's quarterly profit figures. It may be friendly to the environment, but Planetwatch is downright hostile to Spatz – that is, until its ringleader Sebastian gets the hots for Jo. It takes a special package, sent from Granny Strickland to TJ, finally to give the protesters some food for thought

TJ conjures up a plan for Spatz to host kids' parties and reckons he’s come up with a wizard scheme. But as usual (since it wasn't her idea) Karen is deeply unimpressed and soon the whole enterprise seems doomed to failure. But when Head Office green-lights the project and commends TJ for his initiative, Karen sees red and decides to sink the party plan once and for all. Meanwhile, the staff work their magic on Stanley to get him ready for his first date.

The staff of Spatz is revolting. When Vince discovers that rival hamburger chain Blimpy's is paying their staff 10p more an hour than Spatz, it's a case of down with the pickle choppers and up with the workers when Karen lets it be known that she'd sooner throw herself into the deep fat fryer than pay them more money. Agitprop Sebastian is back to join the strike force and picket the scabs – and Jo gets to see her sweetheart in an altogether new light.

The staff are used to Karen calling the tune, but there's dischord in the ranks when she instructs the staff to sing out the customers' orders. Will Debbie and Derek ever make sweet music again, or will her hot date with good-looking Terry hit the right note?

A battle of wits is in danger of escalating into an all-out war when TJ challenges Ivor Willis, the manager of Blimpy's, to a friendly trivia quiz. With secret weapon Lily up their sleeve, the Spatz team is confident of blasting the Blimpettes clean out of the water – until Lily's grandmother falls ill and she has to go away for the week. Meanwhile, Jo's part-time jobs threaten to knock the stuffing out of her.

TJ gets promoted. It seems like great news, but the downside is he's got to return to Canada (that's somewhere just north of the USA). For Karen this is the upside; that is, until TJ's replacement arrives, in the shape of Melvin Frapelli, slobbish and conniving nephew of the Managing Director. Even Karen's got to admit that things were better before. But how to unseat golden boy Frapelli and reinstate Thomas Jefferson Strickland? That is the question. And it’s a sticky one