When Laurel's modeling money comes through, she's inundated with people and their ideas for her money - including Mark; Gil desperately tries to fire Erin from his movie; Shannen misunderstands when her friend Stevie asks her to a dance; and Chris & Jen attempt to deal with post-breakup issues.

While Laurel is away in Japan, Mark rents her room in Maggie's apartment. Meanwhile, Jen and Chris attempt to continue their relationship when their pregnancy takes an unexpected turn and Gil is in hot water when Erin catches him with another girl.

Mark finds a bottle of vodka in the rec room. Erin tries to ruin Kevin's date with Brenda. Anika helps improve Chris's public image.

Anika tries to rekindle Mark and Laurel's romance. Kat gets expelled from school and Jennifer considers getting back together with Mark.

Jen has a horrible time at the school dance. Mark has a difficult time getting over Laurel's past relationship with an older guy. Shannon and Craig realize they have feelings for each other.

Mark finds himself in a difficult dilemma when he discovers Laurel is leaving Vancouver. Erin finds out Kevin has feelings for someone else. Derek gets himself into even more trouble after being provoked by Chris.

Kat makes plans for a weekend trip with Kurt. Shannon and Craig decide to end their relationship. Kevin tries to find out why Erin and Brenda are angry with him.

Craig organizes a rally to support Kat's cause. Erin and Anika befriend the new girl Kelsey, who also happens to be Chris's little sister.

Jennifer walks in on Laurel and Mark during an intimate moment. Erin and Anika get into trouble because of their Web site about Chris. Craig has a difficult time cancelling his date with Kat.

Jennifer tries to set up Shannon and Jordan. Mark learns some shocking news about Laurel's past. Derek's community-service work at the school takes a bad turn.

Mark and Laurel are surprised when they discover Laurel is leaving earlier than expected. Gil and Kevin fight over Erin. Jen learns Shannon is confused about her sexual identity.

Erin and Anika revel in the attention their website is getting, while denying to Chris that it's their doing. Laurel tries to decide whether to end things with Mark. Jen worries about her brother's court date. Craig continues to support Kat, while she develops a crush on him.

Laurel and Mark argue over how her video should conclude. Craig and Shannon are nervous about their on-screen kiss. Kevin is pleasantly surprised when he lands himself a date with both Erin and Brenda.

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Jen contemplates leaving with Eddie; Shannon attempts to patch things up with Stevie, after outing her to her parents; Gil continues planning his grad stunt; Chris & Mark help Laurel move with disastrous results; Wayne finds his soulmate.

Laurel begins looking for a place of her own, when Maggie & Mark make it clear their apartment is too crowded; Shannon's up in arms when the principal won't let her talk about her being a lesbian on Tracey's radio show, but her actions may cause her to lose Stevie; Anika learns more about Derek; Derek disapproves of Jen's friendship with Eddie, as Eddie prepares to move on.

Scott falls for the new girl in school, Laurel. Mark deals with his parents breakup and impending divorce, his own suspension from school and the disappearance of his little brother. Anika declares war on Laurel after a nasty comment about her wardrobe.

Cat and Mark try to find their missing little brother. Scott attempts to ask out Laurel. Anika spreads rumours about Laurel. Mark and Laurel meet for the first time. Jen finds Travis, Mark's little brother sleeping in her car. Gil accidently insults Chris. Erin spies Mark and Laurel having coffee together. Cat busts Mark on his email from Laurel.

It's Mark and Jen's six-month anniversary and she plans on having sex with him. When Mark and Laurel are spotted hanging out, Anika and Erin spread rumors about them which hurts Jen and leads Scott feeling betrayed. Laurel apologizes to Jen and confronts Anika and Erin, making them hate her even more. Laurel and Shannon meet. Scott gets drunk and embarasses himself in front of Laurel. Jen and Mark have a romantic anniversary but she feels she's not ready to sleep with Mark who says it's fine. Later that night Cat spies Mark exchanging emails with Laurel.

Mark misleads Jen while falling for Laurel. Scott meets Brenda, the girl of his dreams. Cat reveals to Jen that Mark has been emailing and talking with Laurel behind her back. Erin pines over Chris, who's more interested in Anika. Jen reads Mark and Laurel's emails.

Things get steamy when Mark poses for Laurel's photo shoot and the two share an illicit kiss. When Erin attempts to dissuade Chris's interest in Anika by saying she is having a steamy affair with a grade 12 guy, it only intrigues Chris more. Chris wagers against Gil that Anika will have sex with him. Scott pursues Brenda and upon discovering she's religious decides to become a Druid. Jen becomes increasingly more suspicious of Mark and Laurel and for good reason too.

After their illicit kiss, Laurel tells Mark she can't be with him when he's still with Jen. Mark tells Laurel he will break up with Jen. While feeling she may be losing Mark, Jen contemplates having sex with him in order to keep him. Scott throws an Equinox party. Craig leads a one-man protest at the Cafe Java but when he chains himself to the table and insults Maggie, she leaves him there overnight. When Anika hears the ""torrid affair"" rumours going around about her, Erin tells her it was Laurel who started them (when really it was a jealous Erin). Laurel and Jen work uncomfortably on a school project together. Mark goes over to Jen's to end things with her but they end up having sex. When Mark falls asleep, Jen is left looking very unsure of herself.

Mark and Jen deal with the aftermath of their night together. Scott wonders if Brenda really likes him. Chris vehemently pursues Anika in order to fulfill his bet with Gil. Craig tries to live down ""his little accident"" at Captain Java's. Mark strings Laurel along as he tries to come to grips with his feelings for Jen. Laurel's photo of a shirtless Mark gets passed around the school. A hurt Jen ""subtly"" mentions her budding sex life with Mark to Laurel. Shannon warns Mark of the repurcussions of his situation. Chris and Anika have a date where he tries to go too far. Shannon and Jen have a fight over Mark.

Anika completely blows off Chris. Shannon attempts to mend fences with Jen. Erin tries to get to the bottom of the Chris and Anika incident. Scott is impressed by Brenda's embracing of his ""religion"" and tries to live up to her expectations. Erin, in an attempt to sway Chris's interest in Anika, tells him Anika is a virgin. Unfortunately for Erin, this only makes Gil and Chris's bet rise. Laurel ends things with Mark for good. When Mark learns his dad is cheating on his mom again and has left, this encourages him to solidify things with Jen.