Sacha and Annie share an apartment in Paris. Their lives are complicated with the arrival of a mystery guest, Sam from America. Nico, who lives opposite the girls, finds out about Sam’s background – but tries to keep it a secret. Sacha, Annie, Nico and Sam play out their romances, life crises and contrasting interests – entirely in French.

In the second episode of Extra (en français), Sam has his first experience of shopping in France. First he does some grocery shopping on the Internet – then Sacha, Annie and Nico decide to give him a make-over which turns out to be a disaster – so he ventures out to clothes shops by himself.

In the third episode of Extra (en français), our friends from Barcelona decide to find love through the Internet, and Sam decides to help out with some jobs around the flat.

In this 4th episode of Extra, Sacha needs a promotion to earn more money, so she approaches her boss (The Octopus) about it. Sam starts looking for a job, but ends up being the waiter for Sacha, during a meal with her boss, cooked by Nico. The evening is a disaster, but our young friends cement their friendships as a result of it.

In this episode Sam starts to notice Annie in a romantic light and, in a bid to win her over, starts learning to cook. Annie becomes obsessed with television commercials, and Nico’s acting career receives a boost when he takes on the role of weather forecaster.

In this episode, Sacha thinks she has won the lottery, but Sam has lost her ticket. Nico is also desperate to find the ticket, as he had written a girl’s telephone number on the back. We follow the characters as they try to find the ticket, and see the consequences when they finally retrieve it.

In episode 7 we discover that Sacha has a twin, Christelle, who is coming to visit. However, Sam, Nico & Annie don’t know that Sacha has a twin, and so much confusion ensues when they presume that Christelle is actually Sacha.

In this episode, we meet the landlady’s cousin, Clotilde, who is taking over business temporarily. Clotilde dislikes the girls but takes a shine to the boys, particularly Nico, who goes on a series of dates with her but starts to regret it when she won’t leave him alone. Meanwhile, the others build shelves with disastrous consequences, and romance finally flourishes between Annie and Sam.

Sacha has a new job as a researcher at Channel 9. She encourages Sam to audition as a reporter to impress her new editor, but Nico's acting tips ruin Sam's performance. Luckily, Lucrecia the new editor finds Sam attractive and hires him anyway. Meanwhile, Nico is looking for a role in a Shakespeare play, and finds a part that is not all it seems.

Annie and her friend drop off a mysterious package, with careful instructions on what to do. Sacha is off on another press conference. Annie has very different concerns and is organizing a press protest outside a factory that uses animals for testing. Later, Nico wakes up to find out what’s in the box. At the demonstration, Sam is instructed to find the ringleaders and make a fool of them.

It’s time for a holiday and everyone has their own idea where they should go. Nico tells everyone that all you really need is ticket, passport and credit card. The foursome end up in an interesting place. There, Sacha meets a guy. Meanwhile, Sam meets a girl.

In this episode, it’s the World Cup. Sam, Annie and Sacha are watching the game on TV. Nico is out. Sam is depressed. Sacha is very distracted. Annie walks in on Sam's and Sacha's rehearsal, and get's the wrong idea. Then, there's a resolution and an interesting development.

Sam and Annie are trying to agree on what sort of wedding they are going to have. Annie wants a simple ceremony at the animal sanctuary. Unfortunately for Sam, his mother is taking it all very seriously, and is on her way over in the family jet.