Delilah and Sophie come together during a family emergency; Rome and Regina learn that their potential birth mother could be in danger; Maggie and Gary face a harsh reality when they attend a mutual friend's cancer remission party.
The team race to Jacksonville in order to prevent another catastrophe like the one at the Manhattan office building, in which everyone bar one man died.
Having gone their separate ways since the series ended 19 years ago, the cast of Beverly Hills 90210 reunites at a 30th anniversary fan convention in Las Vegas, causing old flames, feuds, and feelings to reignite.