Emma isn't very comfortable when Mr. Simpson offers to help with her science project. Manny lets slip to the entire school that Mr. Simpson is dating Emma's mom. Spinner embraces his newfound reputation as a ladies man but upsets Jimmy when he asks out a girl Jimmy had his eye on.

Toby takes extreme measures to make it on the wrestling team while Terri battles vicious teasing when the kids at school discover she is a plus-size model.

Hazel faces an identity crisis during "International Day" at Degrassi. Feeling ashamed of her background, she lies about her ethnicity, but ends up even more confused when lying doesn't help her feel better about it.

Just as Marco and Ellie's relationship heats up, Marco's doubts about his sexuality intensify. Toby is head-over-heels for Kendra and wants to spend every waking moment with her but trouble arises when Kendra starts to feel smothered.

Jimmy and Ashley have finally patched things up and start dating once again. Even though Ashley's style has changed, she assures Jimmy she is still the same girl inside. Meanwhile, Toby and JT learn far more than they ever wanted to know when discussing birth control in health class.

Emma complains to Principal Raditch about the use of genetically modified foods in the cafeteria. When Raditch says they haven't been proved to be harmful, Emma stages a student protest.

Snake's illness is causing a strain on Emma and Sean's alone time. Sean, feeling lost without Emma's support, has thoughts of his old troubled life. He starts to gravitate toward trouble-makers Jay, Alex and Towerz. A fight with Emma over their lack of time alone together turns Sean's thoughts into reality. Sean does whatever he feels he needs to be to be accepted, an act which ends up hurting Emma. Meanwhile, J.T. is hanging out with the in crowd - his new friends - leaving Toby in the lurch. At a sleep-over at Toby's, an embarrassed J.T. has a wet dream over Liberty, which Toby lords over him as blackmail in also being able to hang out with the in crowd.