Transfer student Tori is introduced in this episode, but Zack and Tori don't hit it off, and they are paired up for an ad project. Lisa alienates the Dance Committee before the Fall Ball.

Zack participates in a Bayside's teen hot-line, and becomes close to a disabled girl. Meanwhile, Screech takes on a rambunctious boy.

As the annual masquerade ball approaches, Zack and Slater make a bet about who can kiss Tori first. However, when she discovers their scheme, she decides to get revenge, while Screech's love letters to Lisa cause all manner of mix ups.

If Zack can just get out of detention with Mr. Belding, he can win a trip to Hawaii. Instead the whole gang ends up in detention with him, trying to get him out.

The gang learn about the dangers of drinking and driving when, after getting drunk at a party, they get into an accident in Lisa's mother's car and try to cover it up.

Zack appears to have negotiated a great deal on class rings for the senior class, but it turns out he has been scammed. While he plots revenge, a misguided bet between Tori and Lisa leads to Screech falling for Tori.

A member of Bayside's alumni dies, leaving $10,000 to the students. It is suggested that school sports should receive the money, but deciding which sports are most deserving leads to a battle of the sexes, and some cheating on Zack's part.

Slater is pleased when his younger sister J.B. arrives at Bayside, but his happiness is short lived, as she wants to date Zack, and Slater does not approve.

To avoid a Physics test, the gang throws a baby shower for Mr. Belding's wife Becky. As they are leaving the school, an earthquake strikes, trapping Zack and Tori in the elevator with Becky, who goes into labor.

The senior class want to leave a gift to Bayside's future students and suggest a contest to come up with a new school song. However, Zack decides to rig the competition in his favor in order to be remembered for more than just his bad behavior.