In the explosive and larger-than-life first part of the reunion, Andy Cohen sits down for intimate one-on-one interviews with Ariana, Tom and Raquel to get to the bottom of the cheating scandal that shocked the world. James nearly comes to blows with Sandoval over the affair. Katie and Schwartz rehash the implosion of their divorce. Lala defends herself when the group calls attention to her stance on cheating. Lisa is left speechless when Ariana reveals her stance on her relationships in the group. Raquel watches the reunion from afar due to her restraining order against Scheana.

The reunion comes to an electrifying close as Raquel faces her former friends. The group revisits the disastrous girls' trip to Las Vegas and Lake Havasu. They discuss Tom Schwartz's alleged role in covering up the affair. Ariana breaks down while discussing the betrayal from her ex-boyfriend and ex-best friend. Andy questions Sandoval and Raquel about the status of their relationship and pushes them to reveal if they're in love.