M.1: "Zack's Birthday Party" - Airdate: 9/14/91
During the summer, Lisa gets the gang jobs at the Malibu Sands Beach Club run by the tough minded Mr. Carosi and his daughter Stacey; the gang tries to hold a surprise birthday party for Zack; Zack is having trouble with his new boss Stacey Carosi.
Guest starring: Leah Remini as Stacey Carosi and Ernie Sabella as Mr. Leon Carosi
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M.2: "The Game" - Airdate: 9/21/91
Zack and the gang must beat rival club North Beach in volleyball, so Zack can win a deal on Carosi's car. They go through several sixth team members until Stacey steps up to play in the tournament.
Guest starring: Leah Remini as Stacey Carosi, Dark Sevier as Gary Lucas and Ernie Sabella as Mr. Leon Carosi
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M.3: "Fourth of July" - Airdate: 9/28/91
Zack must name the winner in the Miss Liberty Beauty pageant; the problem: the contestants are Lisa, Jessie, Kelly and Stacey.
Guest starring: Leah Remini as Stacey Carosi, Ernie Sabella as Mr. Leon Carosi and Jacquelyn Hyde as Madonna Schwartzkopf
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M.4: "My Boyfriend's Back" - Airdate: 10/5/91
Just as Zack and Stacey are getting close, Stacey's boyfriend from back east comes for a visit, and Zack is heartbroken; Jessie wants to prove to Slater that she's as good as a man in an ATV race.
Guest starring: Leah Remini as Stacey Carosi, Benjamin King as Craig Strand and Ernie Sabella as Mr. Leon Carosi
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M.5: "Boss Lady" - Airdate: 10/19/91
The gang must hold two conflicting parties simultaneously: a 50th anniversary and a Sweet Sixteen; Screech and Lisa search for buried treasure.
Guest starring: Leah Remini as Stacey Carosi and Ernie Sabella as Mr. Leon Carosi
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M.6: "The Last Weekend" - Airdate: 10/26/91
The end of summer means that the gang and Malibu Sands, and Zack and Stacey, must say goodbye.
Guest starring: Leah Remini as Stacey Carosi, Ernie Sabella as Mr. Leon Carosi, Jordan Michael as Billy and Denise Richards as Slater's admirer