On the day of TomTom's official opening party, Sandoval surprises Schwartz with his grandest gesture yet, while Lisa confronts Lala about her behavior at Billie Lee's brunch. Katie sees the group's vacation to Mexico as a chance to reconnect with her busy husband, but ends up exploding when Schwartz takes a seat in first class without her. Still smarting from his exclusion from the trip, James makes a shocking revelation about his sobriety.