While on her way to her grandmother's birthday party, Alex's day gets sidetracked when she tries to save a diamond runner, named Ben, whose partners, Lisa and Jason, want to silence him for good which leads to a standoff in an underwater cave with Alex and Ben trying to avoid the rising tide and the smugglers circling above in their motorboat. Meanwhile, Hobie and Mitch begin to get on each other's case over privacy in the house, which prompts Hobie to think about moving out. But when Hobie cannot get in with his friends, Neely Capshaw returns and gives Hobie an lucrative offer to move in with her for a while which makes Mitch angry knowing that Neely always has an agenda.

Newmie and Alex are spending a lot of time together riding Sea Doos, going scuba diving and stuff like that. Newmie is convinced that Alex has the hots for him and plans to make a move on her. He tells Mitch about it, but Mitch tells him that it can not be true.