For years, a family feud has separated Frasier, Martin and Niles from their Greek relatives, who live on the other side of town. The cause of the rift? Frasier once advised his cousin Nikos to abandon medical school to pursue his true passion: street juggling. Since then, Nikos' fiery mother Zora has vowed to never speak to the Cranes again.

Defying his mother's wishes, Nikos invites the Cranes to his wedding. Not only does Frasier dread Zora's reaction -- Niles dreads seeing their cousin Yvonne, who is obsessed with Niles. Frasier, Martin, Niles and Daphne decide to test the waters by attending the rehearsal dinner.

Although Zora explodes when she sees Frasier, she allows him to stay at the dinner after extracting a promise that he'll never meddle in her family's affairs again. But when Nikos confides in Frasier that he loves a fellow street performer -- not his wealthy fiancée -- Frasier cannot help himself. He breaks his promise to a furious Zora by reuniting Nikos with his one true love.