The housemates arrive at their new Paris home. They include attractive Ace, 23; virginal Mallory, 19; Simon, 18, from Ireland; cocky Chris, 22; likeable Leah, 22; former cocktail waitress Christina, 24; and Adam, 23, whose father is in the Commodores.[16] Discussions among the housemates discuss which couples will pair off.

The cast members head out to nightclubs to celebrate their first night in France. Leah finds herself attracted to Ace, but Ace is turned off by her smoking. Also, Adam is smitten with Mallory, but the infatuation fades when he learns the feeling isn't mutual.

The housemates learn that their jobs consist of putting together a student travel guide of Europe. Ace curses at a taxi driver and expresses his difficulty adjusting to France. Christina and C.T. flirt in the hot tub express their mutual attraction later that night.

Mallory and Ace try to escape from the cameraman shadowing them and share a kiss. Mallory also loses her purse, which contains Leah's passport, though she later finds it. Adam apologizes to Leah for his behavior in an earlier episode, when he humiliated her in front of the group by saying she wasn't good-looking enough to attract a guy like Ace.

C.T. has a run-in with Christina, who he believes is eating his food and drinking his alcohol. Christina and the other housemates comment on C.T.'s lack of manners and overall rude behavior. Meanwhile, Mallory frets about kissing Ace and finally gets things off her chest with Leah, telling her she has a crush on Ace.

The housemates begin their assignment for Frommer's, which is to research local nightclubs, restaurants, hotels, stores and landmarks, then write reviews for travelers their age. A crucial condition of the job is that they will not be paid unless all housemates contribute reviews. Adam spends his time flirting with girls on the street, then later bumps into a girl from high school, and spends some romantic time with her friend. Leah and Adam's contributions are submitted on time while C.T., Ace and Kristina miss their deadline, and Mallory and Simon are given a reprieve due to illness. Only Leah and Adam get the bonus, although all housemates get paid.

Leah and Christina are becoming increasingly annoyed with C.T.'s attitude and sloppy habits around the house. To make amends, a drunk C.T. asks his brother to order tulips for the girls on Valentine's Day. When he sees the flowers, C.T. does not remember them. Leah receives an email from her friend Chris in America asking if she got the flowers, prompting her to understand that the flowers are from him, and that C.T. is lying (despite the fact that Christina received some too, and Leah's friend did not send her any)

Adam spends some romantic time with a Canadian girl he meets in a disco. He sees her again but stresses that seeing her on a regular basis will compromise his freedom. Frommer's editor Brice asks Christina to resubmit a previous piece of work and turn it in with the others' weekly assignment coordinated by C.T. When she turns it in ahead of the others, it causes dissension within the group. Bryce tells the housemates that going forward all individual work must submitted as one submission or no one will be paid.

Tension begins to build between Leah and Mallory. Leah's brother Pascual flies in to visit and is well liked by the other housemates, especially Mallory. After he leaves, Mallory and Leah begin to discuss their conflict, which ends in a hug.

Christina and Ace snuggle in her bed at night. The next morning she becomes angry when she finds out that somebody ate two of her last three eggs. Ace confesses to it but puts a couple lemons back in the egg carton dressed up as eggs as a "peace offering", prompting Christina to laugh it off. The housemates again struggle to complete their assignment on time. Despite the looming deadline, C.T. and Ace stay up all night and into the morning playing a high-stakes game of pool, disrupting Christina's ability to sleep, as her bedroom lies beneath the pool table.

With seconds to spare, C.T. turns in his portion of the Frommer's assignment on time. However, Leah learns from Bryce that only five "Finds" were included with the assignment (10 Tips and 10 Finds were required). Bryce informs Leah that the group will not get their bonuses, infuriating Leah and Christina. Christina changes her bedroom due to the pool table being right over her bed, which frustrates and disappoints Ace.

Tired of being the odd-man out with Leah and the others, C.T. attempts to make amends. Meanwhile, Adam goes to a gay bar with Simon and Mallory. Simon's boyfriend visits.

Ace's girlfriend, Kate arrives for a visit, though Ace is irritated when she refers to him as her "kind-of boyfriend". He later gets in a drunken argument with a cab driver. Adam is smitten with a girl on whom he spends considerable money, prompting Ace and C.T. to worry that she is exploiting him. Leah and Christina insist that Mallory change to a more fashionable shoe.

The housemates begin an eight-day vacation that includes stops in the French Riviera, Rome, Florence and Switzerland. First, however, they must finish an assignment about Paris nightlife. They finish on time and get their bonuses. C.T. misses the train to Nice, but shows up the next day, to everyone's irritation. Mallory's cousin and aunt visit, and Ace celebrates his 24th birthday.

The housemates arrive in Florence, where Leah and Simon go sightseeing and shopping. Leah has a date with Giuseppe, a waiter she meets at a restaurant. C.T. alienates some of the others when he arrives for dinner drunk.

The housemates conclude their vacation with stops in Rome and Zermatt, Switzerland, where they go snowboarding. Leah personality grates on Mallory, Christina and Simon, leading to an argument among the four of them in a restaurant, and their ejection from that establishment.

The roommates react to U.S. President George W. Bush's speech urging Iraqi President Saddam Hussein and his sons to leave Iraq, and the impending Iraq War. Ace, fed up with the back-and-forth bickering of his roommates, contemplates leaving.

C.T. nearly gets in a fight with another patron at a bar. He then turns his wrath on Adam, accusing him of being "two-faced". He later is enthused by the arrival of his girlfriend Jamie and her friend Wendy for a visit.

Christina and Wendy share concerns about C.T.'s aggressiveness, which in turn concerns Jamie. C.T.'s cousin Mike visits and urges him to dump Jamie. Leah receives a present in the mail from Giuseppe and decides to visit him in Florence. Mallory and Simon don't want to go with her, but Christina accompanies her instead.

Adam's friend Samir visits, and becomes friends with Leah, who's just returned from her weekend with Giuseppe. C.T. takes Christina to lunch in an attempt to mend their relationship.

Adam learns his father has left his mother. Leah's friend Stephanie arrives for a visit carrying letters from Leah's mother and doctor concerning a check-up she had before she came to Paris, which suggests cancer. Leah and Mallory bond when Leah pours out her fears.

Adam's new beau Lamyae, a blonde from Germany with moderate English skills, will not have sex with him until he commits to a relationship. In the meantime he spends a romantic night with Ashley, an American vacationing in Paris. The roommates are given an assignment to stay overnight in a hotel and review different rooms. Adam asks Lamyae to stay overnight in his room, but she leaves when Adam confesses about his night with Ashley. The housemates invite Bryce and David over for dinner, for which the girls are excited to prepare a big feast. C.T. blunders by inviting Lamyae and her friend to attend the dinner, creating an awkward moment when Adam has to tell her on the phone there isn't enough food for two more people. The next night Lamyae and her friend visit the house, but Adam retires to his room, wounded when Lamyae remarks that he follows Ace around like a dog."

Ace receives an e-mail from Kate that ends their relationship. He resumes his flirtation with Mallory. Ace convinces her and several others to visit his favorite strip club, but Mallory becomes upset by the attention he gives the dancers. Chris and Leah are paired together on an assignment to review a chateau, but they decide not to make an on-site visit.

As end of the housemates stay in Paris looms, they are tasked to submit essays on their Paris experience. Bryce interviews each one and asks the same question: "Did you actually write and/or research everything you submitted?" C.T. is honest and admits to his plagiarism of the chateau review. Leah admits to not visiting the chateau, but states on camera that she researched and wrote her review. Ace, Adam, Christina and Leah enjoy a nude dip in the hot tub. Everyone but C.T. heads out for a last night on the town.

What do you get when you combine an argument over who ate who's pizza and a super-sized order of sappiness unleashed at a fondue restaurant? Why, you get the season finale of Real World Paris. All-American Ace sums up his experience in Paris by packing his things in a box that reads: ""Going back to Normalville."" Felling a little sappier, Christina writes ""Bye Bye Paris"" and includes a frown face to get her sentiment across. Once the packing is done, CT and Ace hit the hot tub and talk about how they miss gas stations and how great it will be when they don't have to see anymore croissants and girls who don't speak English. Ace is looking forward to southern belles, Georgia peaches, waffles and bacon--not necessarily in that order. Leah coos over pictures of her and Giuseppe. She says she does not expect much from their relationship since she lives in NY and he resides in Italy, but it was a very romantic and fun time that she'll never forget.

'Real World: Las Vegas' alumnus Steven and Arissa introduce the seven new strangers moving to the city of love.