Thomas is in Chinatown with Rick and T.C. celebrating his upcoming fortieth birthday, but he has little to celebrate when he loses his lucky $2 bill that his Grandpa gave him as a boy. While looking for it, he meets a beautiful woman who may cost him not just his lucky bill, but his heart -- and possibly his life.

Thomas ponders his future while paying a visit to his family in Virginia, where he unexpectedly meets his grandfather and considers an offer to be reinstated to the Navy; Thomas returns to Hawaii to ascertain whether former girlfriend Linda Lee Ellison is being stalked; Rick prepares for his wedding to Cleo; Thomas and Linda renew their relationship as he searches for her stalker; Thomas becomes increasingly certain that his daughter Lily may still be alive.

As Rick's wedding looms ever closer, Thomas continues surveillance on Linda to catch the psychopathic killer who is stalking her; T.C. faces a reconciliation with his estranged wife; Thomas gets surprising news about his theory that Higgins is really Robin Masters, as well as the true fate of Lily.