Lisa and her new friend, Juliet, create a fantasy world that gives them a break from reality.

When Steve suffers indignities in school because of the back brace he must wear for his scoliosis, Stan confides in him that he wears a wig to cover his baldness. Meanwhile, Roger invites both Francine and Hayley to a posh spa even though he has only two passes, so he sneaks in Hayley in a suitcase, raising the suspicions of the house detective.

The family continues to date Ana and tries to decide when and who should give birth to the next child. Meanwhile, Bill gets an answer about the casino, and Barb gets an answer from her doctor. Sarah has a bump in the road on her way to an out-of-state school, and Don is forced into monogamy.

When human remains are found in a duck pond, the team reopens the 1967 murder of a brush salesman.

Old flames popping up for both Bette and Helena complicate their respective lives. Meanwhile, Tasha and Alice try couples counseling.

Degrassi has won their first football game, thanks to Riley. He's suddenly become stronger, and tells Peter he is taking steroids. Riley goes on a date with Anya, only to repress his being gay. His old friend from three years ago appears, trying to get closer to him. Riley's becoming more and more violent, and severely hurts Sav. Peter confronts Riley, and Riley tells him about his childhood dreams about being a star athlete, having lots of friends, and a girlfriend. Peter tells him he could still be a star athlete and have lots of friends; being gay doesn't change that. Meanwhile, Danny sets up Leia and Derek up on a date after Derek begs and Danny realizes he likes her. Derek says it's fine, and Danny and Leia get together.

Tara feels like she is unable to talk to her children about sex. In order to do so, she calls on one of her personalities named Alice.

Bret and Jemaine only have one cup in the apartment to be shared between the two of them, so Bret buys a new cup. However, this frivolous purchase creates money problems for him and Jemaine. They're forced to take drastic measures to pay their bills, including selling their instruments and becoming prostitutes.

The creators imagine how Zeus would spice up the "Clash of the Titans". See how "Star Trek II: The Wrath of Khan" would look like in an opera. Speed Racer competes in NASCAR Racing. Watch the latest edition to MTV's "The Hills".

Jason attends the annual Race of Champions where he feels a bit overwhelmed. Vicki talks to young rally star Tom Cave. Tom takes a look at the new BMW 7 series.

The world is affected by an obesity epidemic, but why isn't everyone succumbing? A controversial overeating experiment aims to identify why it's hard for some people to bulk up. This episode looks at what it is about some people that makes it hard for them to gain weight.