Following her release from prison, Debbie Ocean, younger sister of the late Danny Ocean, reunites with her former partner-in-crime Lou and assembles a team of specialists. They plan to steal the Toussaint, a $150 million Cartier necklace, during the Met Gala, using celebrity Daphne Kluger as an unwitting mule. The heist is the result of a scheme Debbie has been planning for years.